Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

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?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

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

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

One night, a woman receives a call from the police. They tell her that her husband was murdered and that she should come to the crime scene as soon as possible. The woman drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as she reaches the crime scene, the police arrest her and she is convicted of murder. How do the police know she committed the crime?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

What is 3/7 chicken, 2/3 cat and 2/4 goat?