The more it dries, the wetter it becomes. Can you tell what it is?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Solve the mathematical equation in the picture below.

What makes this number unique: 8,549,176,320?

Can it be possible to build a house that has all its four walls facing towards the South?

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

How far can you walk into the woods?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

What part of the chicken has the most feathers?