As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

How many triangles are there on the puzzle below?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?