Replace the question mark with the number below given a simple math problem.

What breaks yet never falls, and what falls yet never breaks?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Consider this: Arnold Schwarzenegger has a big one. Michael J. Fox has a small one. Prince doesn’t have one. The Pope has one but never uses it. Bill Clinton has one and uses it all the time. What is it?

Why do you find that most of the buildings are deprived of the 13th floor?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?

What does does this rebus picture means ?

what does this below rebus represent identXQQQQQME

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?