What is the Surname of Barbie Doll?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Why Wine Glass Stem is so long?

During which month do people sleep the least?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Which is Odd One Out and why?

4377

3954

9862

8454

9831