It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Different lights make me strange by changing me into different sizes. What am I?

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

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

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?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

Find the missing letter in the last circle logically in the given below picture.

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