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?

I am the fastest animal but cannot climb the tree. What am I?

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

I don't get anymore wetter, no matter how much rain falls on me.

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Two old friends, Jack and Jill, meet after a long time, and discussing as:

Jack: Hey, how are you, man?

Bill: Not bad, got married and I have three kids now.

Jack: That's awesome. How old are they?

Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Jack: Cool..But I still don't know.

Bill: My eldest kid just started taking piano lessons.

Jack: Oh, now I get it.

How old are Bill's kids?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Why do you find that most of the buildings are deprived of the 13th floor?

How can you write nineteen in a manner that if we take out one, it becomes twenty?