Count the number of triangles in the picture below:

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

Can you find the company name in the pictogram below?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

Which is the rope you never skip with?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?