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.

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

What is the word or phrase?

Why do Chinese men eat more rice than Japanese men do ?

A farmer and his neighbour once went to Emperor Akbar"s court with a complaint. "Your Majesty, I bought a well from him," said the farmer pointing to his neighbour, "and now he wants me to pay for the water."
"That"s right, your Majesty," said the neighbour. "I sold him the well but not the water!"?
The Emperor asked Birbal to settle the dispute. How did Birbal solve the dispute?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What type of tree can I carry in my hand?