The thickness of a hollow cylinder is 2cm. It is 35 cm long and its inner radius is 12 cm. Find the volume of metal required to make the cylinder, assuming it is open, at either end.

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What is the formula of \[{x^2} + {y^2} + {z^2}?\

What is a dodging number?

What is the value of $ 5 $ million dollars in Indian rupees given that one dollar is equal to $ 75 $ Indian rupees.

How many perfect cubes can you find from 1 to 100? How many from -100 to 100?