What is the centre of gravity?

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

O T T F F S S ?

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

What can jump higher than a building?

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?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Can you find out the total number of triangles in the given figure?