The Cassette Recorder
A man stands on one side of a river, his dog ‘Hachi’ is on the other side of the river.
The man calls his dog three times, who immediately run and crosses the river without getting wet and without using a boat or a bridge.
How did the dog do it?
Ah! Click here to read the solution.
It was in the North Pole, the river was frozen. 🙂
Related Brain Teaser:
The river is frozen. The puzzle doesn’t talk about weather. 😛