A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in each step. The following is an illustration of input and rearrangement.
Input: go now 53 39 18 for again 66
Step 1 : 66 go now 53 39 18 for again
Step 2 : 66 again go now 53 39 18 for
Step 3 : 66 again 53 go now 39 18 for
Step 4 : 66 again 53 for go now 39 18
Step 5 : 66 again 53 for 39 go now 18
Step 6 : 66 again 53 for 39 go 18 now

Step 2 of an input is:   94 car 86 window shut 52 31 house
Which of the following is definitely the input?

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?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_qr_srq_p_rs_r_p

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

Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
7– 4 – 1 = 714, 9 – 2 – 3 = 932 8– 0–4 = ?  

Mohan travelled 5 km towards the West. Then he travelled 3 km. after turning to the left, then 9 km. after turning to the right. Then he went 3 km. towards the North. How far is he from the starting point?

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

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?