diff --git a/challenges133_138/1.png b/challenges133_138/1.png
new file mode 100644
index 0000000..8c7f7c2
Binary files /dev/null and b/challenges133_138/1.png differ
diff --git a/challenges133_138/challenge-133_.py b/challenges133_138/challenge-133_.py
new file mode 100644
index 0000000..1217eae
--- /dev/null
+++ b/challenges133_138/challenge-133_.py
@@ -0,0 +1,37 @@
+from tkinter import *
+
+def click():
+    name=textbox1.get()
+    message=str("Hello "+name)
+    textbox2["text"]=message
+
+window=Tk()
+window.title("Names")
+window.geometry("450x350")
+#window.wm_iconbitmap("stripes.ico")
+window.configure(background="black")
+
+logo=PhotoImage(file="1.png")
+logoimage=Label(image=logo)
+logoimage.place(x=100, y=20, width=200, height=150)
+
+label1=Label(text="Enter your name: ")
+label1.place(x=30, y=200)
+label1["bg"]="black"
+label1["fg"]="white"
+
+textbox1=Entry(text="")
+textbox1.place(x=150, y=200, width=200, height=25)
+textbox1["justify"]="center"
+textbox1.focus()
+
+button1=Button(text="Press me", command=click)
+button1.place(x=30, y=250, width=120, height=25)
+button1["bg"]="yellow"
+
+textbox2=Message(text="")
+textbox2.place(x=150, y=250, width=200, height=25)
+textbox2["bg"]="white"
+textbox2["fg"]="black"
+
+window.mainloop()
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diff --git a/challenges133_138/challenge-134_.py b/challenges133_138/challenge-134_.py
new file mode 100644
index 0000000..bba2699
--- /dev/null
+++ b/challenges133_138/challenge-134_.py
@@ -0,0 +1,62 @@
+from tkinter import *
+import random
+
+def checkans():
+    theirans=int(ansbox.get())
+    num1=int(num1box["text"])
+    num2=int(num2box["text"])
+    ans=num1+num2
+    if theirans==ans:
+        img=PhotoImage(file="correct.png")
+        imgbx.image=img
+    else:
+        img=PhotoImage(file="wrong.pn53g")
+        imgbx.image=img
+    imgbx["image"]=img
+    imgbx.update()
+
+def nextquestion():
+    ansbox.delete(0,END)
+    num1=random.randint(10,50)
+    num1box["text"]=num1
+    num2=random.randint(10,50)
+    num2box["text"]=num2
+    img=PhotoImage(file="")
+    imgbx.image=img
+    imgbx["image"]=img
+    imgbx.update()
+
+
+window=Tk()
+window.title("Addition")
+window.geometry("250x300")
+
+num1box=Label(text="0")
+num1box.place(x=50, y=30, width=25, height=25)
+addsymbl=Message(text="+")
+addsymbl.place(x=75, y=30, width=25, height=25)
+
+num2box=Label(text="0")
+num2box.place(x=100, y=30, width=25, height=25)
+eqlsymbl=Message(text="=")
+eqlsymbl.place(x=125, y=30, width=25, height=25)
+
+ansbox=Entry(text="")
+ansbox.place(x=150, y=30, width=25, height=25)
+ansbox["justify"]="center"
+ansbox.focus()
+
+checkbtn=Button(text="Check", command=checkans)
+checkbtn.place(x=50, y=60, width=75, height=25)
+
+nextbtn=Button(text="Next", command=nextquestion)
+nextbtn.place(x=130, y=60, width=75, height=25)
+
+img=PhotoImage(file="")
+imgbx=Label(image=img)
+imgbx.image=img
+imgbx.place(x=25, y=100, width=200, height=150)
+
+nextquestion()
+
+window.mainloop()
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diff --git a/challenges133_138/challenge-135_.py b/challenges133_138/challenge-135_.py
new file mode 100644
index 0000000..548f3b1
--- /dev/null
+++ b/challenges133_138/challenge-135_.py
@@ -0,0 +1,20 @@
+from tkinter import *
+
+def clicked():
+    sel=selectcolour.get()
+    window.configure(background=sel)
+
+window=Tk()
+window.title("background")
+window.geometry("200x200")
+
+selectcolour=StringVar(window)
+selectcolour.set("Grey")
+
+colourlist=OptionMenu(window,selectcolour, "Grey", "Red", "Blue", "Green", "Yellow")
+colourlist.place(x=50,y=30)
+
+clickme=Button(text="Click me", command=clicked)
+clickme.place(x=50, y=150, width=60, height=30)
+
+window.mainloop()
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diff --git a/challenges133_138/challenge-136_.py b/challenges133_138/challenge-136_.py
new file mode 100644
index 0000000..773865e
--- /dev/null
+++ b/challenges133_138/challenge-136_.py
@@ -0,0 +1,38 @@
+from tkinter import *
+
+def add_to_list():
+    name=namebox.get()
+    namebox.delete(0,END)
+    genderselection = gender.get()
+    gender.set("M/F")
+    newdata = name + "," + genderselection + "\n"
+    name_list.insert(END,newdata)
+    namebox.focus()
+
+window=Tk()
+window.title("People list")
+window.geometry("400x400")
+
+namelbl=Label(text="Enter their name")
+namelbl.place(x=50, y=50, width=100, height=25)
+
+namebox=Entry(text="")
+namebox.place(x=150, y=50, width=150, height=25)
+namebox.focus()
+
+genderlbl=Label(text="Select gender")
+genderlbl.place(x=50, y=100, width=100, height=25)
+
+gender=StringVar(window)
+gender.set("M/F")
+
+gendermenu=OptionMenu(window,gender, "M", "F")
+gendermenu.place(x=150,y=100)
+
+name_list=Listbox()
+name_list.place(x=150, y=150, width=150, height=100)
+
+addbtn=Button(text="Add to list", command=add_to_list)
+addbtn.place(x=50, y=300, width=100, height=25)
+
+window.mainloop()
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diff --git a/challenges133_138/challenge-137_.py b/challenges133_138/challenge-137_.py
new file mode 100644
index 0000000..39afa8b
--- /dev/null
+++ b/challenges133_138/challenge-137_.py
@@ -0,0 +1,48 @@
+from tkinter import *
+
+def add_to_list():
+    name=namebox.get()
+    namebox.delete(0,END)
+    genderselection = gender.get()
+    gender.set("M/F")
+    newdata = name + "," + genderselection + "\n"
+    name_list.insert(END,newdata)
+    namebox.focus()
+    file=open("names.txt","a")
+    file.write(newdata)
+    file.close()
+
+def print_list():
+    file=open("names.txt","r")
+    print(file.read())
+
+window=Tk()
+window.title("People list")
+window.geometry("400x400")
+
+namelbl=Label(text="Enter their name")
+namelbl.place(x=50, y=50, width=100, height=25)
+
+namebox=Entry(text="")
+namebox.place(x=150, y=50, width=150, height=25)
+namebox.focus()
+
+genderlbl=Label(text="Select gender")
+genderlbl.place(x=50, y=100, width=100, height=25)
+
+gender=StringVar(window)
+gender.set("M/F")
+
+gendermenu=OptionMenu(window,gender, "M", "F")
+gendermenu.place(x=150,y=100)
+
+name_list=Listbox()
+name_list.place(x=150, y=150, width=150, height=100)
+
+addbtn=Button(text="Add to list", command=add_to_list)
+addbtn.place(x=50, y=300, width=100, height=25)
+
+printlst=Button(text="Print list", command=print_list)
+printlst.place(x=175, y=300, width=100, height=25)
+
+window.mainloop()
\ No newline at end of file
diff --git a/challenges133_138/challenge-138_.py b/challenges133_138/challenge-138_.py
new file mode 100644
index 0000000..6542e1f
--- /dev/null
+++ b/challenges133_138/challenge-138_.py
@@ -0,0 +1,33 @@
+#Sometimes, it doesn't work with certain error message on Jupyter notebook.
+#In case of error, restart IDE and that will do.
+
+from tkinter import *
+
+def clicked():
+    num=selection.get()
+    artref=num+".png"
+    photo=PhotoImage(file=artref)
+    photobox.image=photo
+    photobox["image"]=photo
+    photobox.update()
+
+window=Tk()
+window.title("Art")
+window.geometry("400x350")
+
+art=PhotoImage(file="1.png")
+photobox=Label(window, image=art)
+photobox.image=art
+photobox.place(x=100, y=20, width=200, height=150)
+
+label=Label(text="Select art number: ")
+label.place(x=50, y=200, width=100, height=25)
+
+selection=Entry(text="")
+selection.place(x=200, y=200, width=100, height=25)
+selection.focus()
+
+clickme=Button(text="See art", command=clicked)
+clickme.place(x=150, y=250, width=100, height=25)
+
+window.mainloop()
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