How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

What is the centre of gravity?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What type of tree can I carry in my hand?

Can you replace the question mark with the correct number in the below table sequence?

What English word has three consecutive double letters?

A man dies of old age on his 25 birthday. How is this possible?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?