Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

Can you divide the below-given shape into four equal and identical pieces?

Replace the question mark with the number below given a simple math problem.

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

Move four matchsticks to the below square to form three squares?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
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