Lateral thinking is solving problems through an indirect and creative approach, using reasoning that is not immediately obvious and involving ideas that may not be obtainable by using only traditional step-by-step logic. The term was coined in 1967 by Edward de Bono.
Lateral Thinking Puzzle #1
A man is lying awake in bed. He makes a phone call, says nothing, and goes to sleep.
Lateral Thinking Puzzle #2
Joe, wearing a mask and carrying an empty sack, leaves his house. An hour later he returns with a full sack. He goes into a room and turns out the lights.
Lateral Thinking Puzzle #3
Alan is an honest person who never speaks a lie. He thinks of a number among 1, 2 and 3. Now, you can ask him only one question and that too for which the answer that you will receive will be in the form of yes, no or don’t know. But he will reply only truth fully.
What will you ask from his so that you can know the number he is thinking of?
If Alan replies with no, he is thinking of the number 1.
If Alan replies with yes, he is thinking of the number 3.
If Alan replies with don’t know, he is thinking of the number 2.
Lateral Thinking Puzzle #4
One man was moving to and fro in worry when a bright woman noticed him. On asking he told her that while replacing his tire, he incidentally dropped all the four nuts into a deep drain. She told him what to do and he was then able to drive back successfully till his office.
What did she say to him?
Lateral Thinking Puzzle #5
An ordinary American citizen, with no passport, visits over thirty foreign countries in one day. He is welcomed in each country and leaves each one of his own accord.