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

O T T F F S S ?

What does below rebus means ?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

John's five friends Rachel, Jacob, Phoebe, Joey and Chandler live on the same road.

Rachel lives in the house: A, Jacob lives in the house: B, Phoebe lives in the house: C, Joey lives in the house:D, Chandler lives in the house: E

Mathematically
B*C*D = 1260
B + C + D = 2E
2A = E

The road numbers run from 2 to 222.

Can you tell me the house number of each of John's friends?

What do you call a fish without an eye?

Can you find the company name in the pictogram below?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?