If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Using Only Five 5's and any mathematical operator make sum as 37

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

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 ?

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

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Can you calculate the probability of getting a sum of six when a dice is thrown twice?