FEATURED

## Two Monks on a Mountain

Two monks are standing on the two sides of a 2-dimensional mountain, at altitude 0. The mountain can have any number of ups and downs, but never drops under altitude 0. Prove that the monks can climb or descend the mountain at the same time on both sides, always staying at the same altitude, until they meet at the same point.

Coming soon.

FEATURED

## Front Wheels

When a car is making a turn, are its front wheels parallel to each other?

The front wheels are not parallel to each other. The reason is that when steering, all wheels are turning along arks that have a common center. Otherwise, the car would be drifting.

FEATURED

## Square Triangle Circle

Can you draw a 3-dimensional object which looks like a square when looked from one side, a triangle when looked from a second side, and a circle when looked from a third side?

The object bellow satisfies the requirements.

FEATURED

## Six Friends Camping

Monday, six friends went camping. Tuesday, John, Jack, and James cooked some mushrooms. Wednesday came and they ate the mushrooms. Thursday found them dead. Exactly one friend survived, how come?

The six friends are called John, Jack, James, Tuesday, Wednesday, and Thursday. John, Jack, James, and Tuesday cooked the mushrooms. Wednesday joined them and they ate the mushrooms. Thursday was the one to find them dead, so he is the survivor.

FEATURED

## Puzzle Prime Maze

Get from START to FINISH in this special maze created by Joe Wos for Puzzle Prime.

The solution is shown below.

FEATURED

## Pierre the Maze Detective in the Last Giant Maze

Help Pierre catch the evil Mr X before he manages to escape from this giant maze. On your way to him, look out for these hidden items:

• 5 hidden stars
• 5 green treasure chests
• 5 red trophies
• Mr. X’s sidekick (wearing a striped blue shirt)
• 5 elephants
• 1 lion
• 1 shark
• 1 ghost
• 10 gold weathercocks

The solution is shown below.

FEATURED

## Tetris Maze

In order to catch the thief, you must make your way through this Tetris maze formed by the 5 different pieces shown at the bottom. You can not climb over the blocks, just find a tunnel inside the construction.

The solution is shown below.

FEATURED

## Penrose Railway Maze 2

Get from START to FINISH, moving only over smooth lines, without reversing and making sharp turns.

The solution is shown below.

FEATURED

## The Mansion

Can you find your way through this mansion, by using the information from the security cameras? In order to escape, you must use the correct key and unlock the exit door.

The solution is shown below.