The minimum number of colours required to paint all faces of a cube, so that no two adjacent faces may have the same colour, is

A cube has the numbers 1 to 6 written on its faces, and the sum of opposite faces is not constant. The faces showing 1, 2 and 3 meet at a corner, 4 is opposite 2 and 5 is opposite 3. Which number is…

Pointing a photograph, a man said, "I have no brother and sister but the father of that man is the son of my father". Whose photograph is it?

Select the option that is related to the third number in the same way as the second number is related to the first number. 5 : 150 :: 8 : ?

Deepak said to Nitin, "that boy playing with the football is the younger of the two brothers of the daughter of my father's wife". How is the boy playing football related to Deepak?

Four pairs of numbers are given of which three are alike and one is different. Find the one which is different.