Replace the question mark with the correct number in the below-given picture?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

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

When did John make this statement?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Find the next number in the sequence

1, 2, 6, 21, 88, __?