Rectify the following equality 101 - 102 = 1 by moving just one digit.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Can you guess the name of the month by looking the below rebus ?