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?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

What can you deduce from the following BrainBat?

CRY
LMKI

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

What 5-letter word typed in all capital letters can be read the same upside down?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

what does the below rebus means?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?