81 x 9 = 801. What must you do to make the this equation true?

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

O T T F F S S ?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Move three sticks of the spiral below to form a square.

Which word does the below Plexor means ?

I have no life, but I can die. What am I?

Decode this picture on T-Shirt and tell what it says ?