A book costs $1 plus half its price. How much does it cost?

Riddle Answer# Logic Riddles

## Two Trains Puzzle

A nonstop train leaves Moscow for Leningrad at 60 miles per hour. Another nonstop train leaves Leningrad for Moscow at 40 miles an hour. How far apart are the trains 1 hour before they pass each other?

Riddle Answer## 10 Chairs 4 Walls

In a rectangular dance hall, how do you place 10 chairs along the walls so that there are an equal number of chairs along each wall?

Riddle Answer## Roll Them Out

In a long, narrow chute there are 8 balls: 4 black ones on the left, and 4 white ones-slightly larger-on the right. In the middle of the chute there is a small niche that can hold 1 ball of either color. The chute’s right end has an opening large enough for a black but not a white ball.

Roll all the black balls out of the chute. You can’t pick them up from the chute.

Riddle Answer## Crossing a River

A detachment of soldiers must cross a river. The bridge is broken, the river is deep. Suddenly the officer in charge spots 2 boys playing in a rowboat by the shore. The boat is so tiny, however, that it can only hold 2 boys or 1 soldier.

Still, all the soldiers succeed in crossing the river in the boat. How?

Riddle Answer