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

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

What is 3/7 chicken, 2/3 cat and 2/4 goat?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

What does the below mathematical rebus mean?

A tourist visits a small town for his research. While in the town, he decides to get a haircut. Since the town is quite small, there are only two barbers in the town � one on the North Street and one on the South Street. The barbershop on the North Street is a mess and the barber has a weird and pathetic haircut. While the barbershop at the South Street is pretty tidy and the barber as well has an impressive haircut.

Which barbershop will the tourist visit for his haircut and why?

I have branches, but no fruit, trunk or leaves. What am I?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I