Can you convert the number zero(0) into a positive number using just one mathematical operator ?

You are given 2 eggs.
You have access to a 100-storey building.
Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor, Both eggs are identical.
You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

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

During which month do people sleep the least?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?