You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

What is the next number in the series?

15 29 56 108 208 ?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

By moving just one matchstick, you need to make the below statement true. Can you do it?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

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