Take away the whole and some still remain. What is it?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

If you say my name, I will no longer exist. What am I?

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

O T T F F S S ?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

You are trapped into a death trap by the famous jigsaw killer. As usual, a screen flashes in front of you and explains you the trap game. There are 100 pearls kept in a bowl in front of you and an empty bowl. Among the 100 pearls, 50 are white and 50 are black. You can divide them as you like into the two bowls. Once you are done, you will pull a lever, which will turn the room pitch black. The bowls will move and shuffle around. In the dark, you have to pick up one pearl from any bowl. Once you do that, the room will flood with lights again. If the peral you have in your hand is white, you will be allowed to live, but if the pearl you picked is black, the room will be filled with poisonous gas and you will die. How will divide the pearls to increase your chances of survival?

How do you go from 98 to 720 using just one letter?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?