10 Brainteasers to stretch your brain

1- A man stands on one side of the river, his dog on the other.  the man calls his dog , who immediately crosses the river without getting wet and using a bridge or a boat.  How did he do it?

2- A sundial has the fewest moving parts of any timepiece.  Which has the most?

3- What is unusual about the following words: revive, banana, grammar, voodoo, assess, potato, dresser, uneven?

4- What makes this number unique – 8,549,176,320?

5- Put a coin into an empty bottle and insert a cork into the neck. How can you remove the coin without removing the cork or breaking the bottle?

6- Two boxers are in a match scheduled for 12 rounds. (Pure boxing only – no kicking, UFC takedowns, or anything else). One of the boxers gets knocked out after only six rounds, yet no man throws a punch. How is this possible?

7- In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

8- A man takes his car to a hotel. Upon reaching the hotel, he is immediately declared bankrupt. Why?

9- What do these words have in common: polish, job, herb?

10- You’re standing in a hallway with three light switches on the wall, each of which turns on a different lamp inside a closed room. You can’t see inside the room, and you can’t open the door except to enter the room. You can enter the room only once, and when you do, all the lamps must be turned off. How can you tell which switch turns on which lamp?

Good luck!

Let’s keep in mind that it’s Friday, and some of them are quite hard, so don’t rand-sack your brain.

Here are the answers: Answers


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