You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Complete the table series riddle by finding the number that can replace "??".

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Look at the picture and find out which square is not linked with any of the other squares.

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

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.