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

Which is faster, Heat or Cold ? Explain.

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

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

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

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?