How many times in a given day, minutes and hour clock comes in a straight line ?

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?”

Why is a river so rich ?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Can you count the number of triangles in the given picture?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?