What is the riddle which can be asked all day with a different correct answer each time.

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Which letter of the alphabet has the most water?

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Which five letter word can be added at the end of below word to form a
valid word?

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In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

Can you name some countries which do not have the alphabet 'A' in them?