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

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

0 0 0 = 6
1 1 1 = 6
2 2 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

You can use any mathematical symbols in the space provided to make all above algebraic expressions true.

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

What number divided by 4 is the same as that number minus 4?

Can you find out the remainder when 3^300 is divided by 5?

I throw two dice simultaneously.

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

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.