Can you start the fire using two pieces of wood?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Why is it very easy to weigh a fish?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

Before Mount Everest was discovered, what was the highest mountain in the world?

How do you go from 98 to 720 using just one letter?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Count the number of squares in the picture below.

What does below rebus means ?