When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

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?

Client Dempsey living in one of the East Coast states of the U.S. was talking to Landon Donovan, who was living in the West Coast state of the U.S.

Dempsey: What time is it?
Donovan: Wow, It is the same time here.

How is this possible?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

What is the longest word in the dictionary?

The Little ant seems to be always confused. Do you know why?