John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

A man dies of old age on his 25 birthday. How is this possible?

A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

I am quite hot but become too cold if you remove the first two letters. What am I?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

Decode below rebus
D
N
A
T
S , D