John is the son of Jacob.
So,
Jacob is the_____of John's father?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Can you spot the man between the coffee bean in the picture below ?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

Find the last number in the series below:

voN luJ yaM raM ---

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?