How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

What is the next number in this matchsticks series riddle?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What is the fastest way to double your money?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

O_er_t_o_

Complete the missing letters of the given word.

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Find the 8 in the below-given Image.

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?