You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

If an electric train is travelling south, then which way is the smoke going?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

What am I?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?