Which is heavier: a ton of bricks or a ton of feathers?

Why is a river so rich ?

I am white when I am dirty, and black when I am clean. What am I?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

Can you find out which options fits best with the missing column?

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Birbal was jester, counsellor, and fool to the great Moghul emperor, Akbar.
The villagers loved to talk of Birbal's wisdom and cleverness,
and the emperor loved to try to outsmart him.
One day Akbar (emperor) drew a line across the floor.
"Birbal," he ordered, "you must make this line shorter, but you cannot erase any bit of it."
Everyone present thought the emperor had finally outsmarted Birbal.
It was clearly an impossible task.
Yet within moments the emperor and everyone else present had to agree that Birbal had made the line shorter without erasing any of it.
How could this be?