Can you find out which number multiplied by itself will give the output as 12345678987654321?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

What does Alexander the Great and Winnie the Pooh have in common?

Which digit occurred maximum times between the number 1 and 1000?

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

Who can jump higher than a Mountain?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?