You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

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

What kind of storm is always in a rush?

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

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What word begins and ends with an E, but has only one letter?

What is black when you buy it, red when you use it, and gray when you throw it away?

Two old friends, Jack and Jill, meet after a long time, and discussing as:

Jack: Hey, how are you, man?

Bill: Not bad, got married and I have three kids now.

Jack: That's awesome. How old are they?

Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Jack: Cool..But I still don't know.

Bill: My eldest kid just started taking piano lessons.

Jack: Oh, now I get it.

How old are Bill's kids?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.