Count the squares in the matchstick puzzle below?

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

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

I am sure no one can have two things for dinner. what are they?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

What goes through cities and fields, but never moves?

How is the moon similar to a dollar?

I can write cow in 13 letters.

Can You?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

How many sides does a circle have?