Which tank will fill first?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Where do you go to learn how to make ice cream?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

What you cannot hold but it is yours?

In the image below, can you find the value of an angle(y)

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?