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

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

What is always in front of you but can’t be seen?

Can you divide the below-given shape into four equal and identical pieces?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

Can you solve the maths in the below-given picture equation?

Can you name some countries which do not have the alphabet 'A' in them?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?