## The Magnetic Rod

You are in a room with nothing else but two indistinguishable iron rods. You know that one of them is magnetized, how can you figure out which one?

Touch the middle of the first rod with the end of the second rod. If the two rods get attracted to each other, then the second one is the magnet. If not, then the first one is the magnet.

## Getting Older

If the day before yesterday Tim was 18 years old and next year he will be 21 years old, what is the date today?

Today is 1st of January.

## Along O’Brien’s Bridge

Get from START to FINISH in this landscape maze, created by Matthew Haussler.

The solution is shown below.

## Every Song

John: “I know every song in the World.”

Paul: “It can’t be. I bet you don’t know any songs which contain the name of my daughter – Beatrice.”

John accepted the bet and won. Which song did he sing?

John performed the “Happy Birthday” song.

## Place a Coin

Two friends are playing the following game – taking turns, they place identical coins on a square table, so that no two coins touch each other. Whoever can not make a move, loses the game. Who has a winning strategy?

The first player has a winning strategy. He just has to place the first coin in the center of the table and then each consecutive one symmetrically opposite to the last coin of his opponent.