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.

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

I have teeth but i don't bite. Who Am I ?

Why do we preferably have round manhole covers and not square ones?

What does it mean?

What do you get if you add 2 to 100 four times?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

You can hear me, but you can't touch or see me.

What am I?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your