Can you decipher the two rows to find the hidden word?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Count the number of balls in picture below:

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

Two men are in a desert. They both have packs on. One of the guys is dead. The guy alive has his pack open, and the guy who is dead has his pack closed. What is in the pack?

Which letter of the alphabet has the most water?

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

What has many teeth, but cannot bite?