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

O T T F F S S ?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What number do you get when you multiply all of the numbers on a telephone's number pad?

You are a thief and you are being punished for your crime. People have tied your head down on a tree with a rope that has been anchored in the ground. A candle is burning below the rope which is slowly burning it away. Just below your head, a Lion has been left loose and is waiting for you to drop down on the ground so he can have you as his lunch.

You have to survive the scenario. How will you do it?

How could a baby fall out of a twenty-story building onto the ground and live?

You bought me for dinner but never eat me. What am I?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?