The weights of 4 boxes are 30, 40, 50 and 80 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

Six boys are sitting around a circular table facing the centre. M is sitting second to the right of K who is sitting opposite to F. L and O are sitting opposite each other. Neither L nor R sits near F. Who sits in front of R?

Select the odd word from the given alternatives.

What is value placed at Question mark?
10.1: 1.01 ::  0.1: ?

If MEKLF is coded as 91782 and LLLJK as 88867, then how can IGHED be coded?

A is the brother of B, C is the father of D, E is the mother of B. A and D are brother. How is E related to C?

In the following questions complete the number series :
204, 100, 48, 22, ___

In the following question find the missing number?