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.

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

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Can you find the six hidden animals in the picture below?

Which of the below owl is odd one out?

Which is the rope you never skip with?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

Which tank will fill first?

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