Our product and our sum always give the same answer. Who are we?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What goes up but never comes down?

What runs around the whole yard without moving?

A rain drop fell from one leaf to another leaf and lost 1/4th of its volume. It then fell to another leaf and lost 1/5th of the volume. It again fell on another leaf and lost 1/5th of the volume.



This process kept repeating till it fell on the last leaf losing 1/75th of its volume.



Can you calculate the total percentage of loss from the initial volume when the drop has fallen to the last leaf accurate up to two decimal places?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Which tank will fill first?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

What is next number in the pattern below:

131 517 192 123 ?