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.

Stuck in a Blender

You get shrunk 100 times (preserving your density), then thrown in a blender. You have 2 minutes until the blades of the blender start spinning. How are you going to escape?

If you get shrunk 100 times, but your density remains the same, your muscles will become so strong relative to your size, that you will be able to jump out of the blender. The reason is that your weight will decrease 1000000 times, but your muscle cross-section just 10000 times.

Cross – Parallel

This puzzle/game is played with groups of people, in which some of the participants know the rules, and others are trying to figure them out.

All players must sit in a circle, facing each other. Then one person who is familiar with the rules starts by pointing at another and saying “cross-cross”, “cross-parallel”, “parallel-cross”, or “parallel-parallel”. After that, the person who got picked must choose another one and guess which one of the four expressions above he must say. If he gets it wrong, he gets corrected, and then the next person continues. The game ends when everyone finds out what the secret is.

To play this puzzle game with your friends, at least one of you must know the secret rules and solution, which are explained below. Just keep in mind that whoever learns the rules, will lose the enjoyment of figuring them out by himself.

When you point at somebody, you say “cross-cross”, if yours and the other person’s legs are crossed, “cross-parallel”, if yours are crossed and the other person’s are parallel, etc.

Murder or Suicide

Examine the picture and determine whether the woman was killed or she committed a suicide.

This was a murder, which was supposed to look like a suicide. These are some of the reasons:

1. The dead person has not finished their cigarette yet, which is a normal thing to do when someone commits a suicide.
2. The person is left-handed, judging by the position of the pen and the lamp, but is holding the gun in their right hand.
3. It was supposed to look like the person was writing a death note before killing themselves, but it is night and the lamp is not plugged in.

Nervous Breakdown

Once there was a recluse who always stayed in his home. The only time anyone visited him was when his food and supplies were delivered, but nobody came inside. One winter night there was a big storm and the recluse had a nervous breakdown. He went to his room, turned off all the lights and got in his bed. The next morning he found out that he caused the deaths of several hundred people. How?

The recluse was living in a lighthouse. When he turned off the lights, he caused several ships to get wrecked in the cliffs and many people die.

The Ping Pong Puzzle

Three friends – A, B, and C, are playing ping pong. They play the usual way – two play at a time, the winner stays on the table, the loser lets the third one play. If you know that A played 10 matches in total, B played 15 matches in total, and C played 17 matches in total, who lost the second game?

A lost it. Since there have been (10 + 15 + 17) / 2 = 21 games played in total, and each player never misses 2 games in a row, the only way for A to play just 10 games is if he plays the 2nd, 4th, 6th, etc. games, and every time loses.