Complete the table series riddle by finding the number that can replace "??".

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

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?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What does below rebus means ?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking