I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

How many triangles can you count in the figure given?

Which alphabet letter is a question?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

The more it dries, the wetter it becomes. Can you tell what it is?

What word begins and ends with an E, but has only one letter?

What kind of tree can you carry in your hand?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?