The Little ant seems to be always confused. Do you know why?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

How can you tell a raw egg from a hard-boiled egg?

Prove that twice of ten is the same as twice of eleven.

What number when divided in half becomes zero?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

What kind of storm is always in a rush?