The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At 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." How can that be possible?

What makes this number unique: 8,549,176,320?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Replace the question mark in the picture below.

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Find the smallest sentence with all the English alphabet.

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

The pound is not a finish.

We are sharing a few instructions below, which you have to use in any suitable order to modify the above sentence such that the end sentence is a scientific fact.

- Eliminate a letter and supplement another in its place.
- Take away one word.
- Remove one letter from one word.
- Get rid of two letters from one word.
- Swap a word with its antonym.