Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Can you find a five letter word that is left with only two letters if one is removed?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

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?

Which tank will fill first?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.