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?

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

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

O_er_t_o_

Complete the missing letters of the given word.

What can you serve, but never eat?

I always drive my customer away.

Who am I?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

How many Watermelons are there in the below picture?

what does this below rebus represent identXQQQQQME

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?