If six children and two dogs were under an umbrella, how come none of them got wet?

What month of the year has 28 days?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Why Wine Glass Stem is so long?

Can you find out the remainder when 3^300 is divided by 5?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Buy me, smell me or deliver me, I do not change.

Who am I?

what does this below rebus represent identXQQQQQME