I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

I am something people love or hate. I change peoples appearances and thoughts. If a person takes care of them self I will go up even higher. To some people I will fool them. To others I am a mystery. Some people might want to try and hide me but I will show. No matter how hard people try I will Never go down. What am I?

What is the fastest way to double your money?

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

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

It is always ahead of me yet I can never see it. What is it?

A Monkey, a squirrel, and an Eagle are racing to the top of the mango tree. Assuming all these animals are in perfect shape, Which animal will reach to Banana first?

I have branches, but no fruit, trunk or leaves. What am I?

Can you solve the rebus below?

Replace the question mark with the correct number in the below-given picture?