10+10 and 11+11 can give you the same answer.

Explain how?

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?

What runs around the whole yard without moving?

Remove two matchsticks to make the below equation correct.

What number do you get when you multiply all of the numbers on a telephone's number pad?

What English word has three consecutive double letters?

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

Find the missing number in the image below.

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?