There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

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

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Solve the following series:
AZ, GT, MN, __, YB

What is the Surname of Barbie Doll?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

What's the best place to go shopping in the ocean?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.