You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

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?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Can you find out the missing number in the grid?

What's a single-digit number with no value?