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?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Forwards I am heavy, backward I am not. What am I?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

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

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

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?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

You see me once in June, twice in November, and not at all in May. What am I?

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?