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

What is the coolest letter in the alphabet?

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

Remove two matchsticks to make the below equation correct.

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Which of the below owl is odd one out?

How many times can you subtract the number two from the number fifty?

What is so fragile that saying its name breaks it?