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

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Which Burger Is Different in below image?

Can you start the fire using two pieces of wood?

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

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?