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?

In a guessing game, five friends had to guess the exact numbers of apples in a covered basket.
Friends guessed 22, 24, 29, 33, and 38, but none of the guesses was correct. The guesses were off by 1, 8, 6, 3, and 8 (in random order).

Can you determine the number of apples in a basket from this information?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

If eleven plus two equals one, what does nine plus five equal?

0 0 0 = 6
1 1 1 = 6
2 2 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

You can use any mathematical symbols in the space provided to make all above algebraic expressions true.

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

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Can you solve the photo plexer logic ?