What happened when the wheel was invented?

Can you solve below mathematical equation?

2^1234 - 2^1233

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Which is the smallest number that you can write using all the vowels exactly once?

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?

What does Alexander the Great and Winnie the Pooh have in common?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

How many letters are in the alphabet?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?