Verbal Reasoning - Mental Ability Questions

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
VWX, BCD, HIJ, ?

In the following question, select the odd number from the given alternatives.

Select the related word/letters/number from the given alternatives.
66 : 36 : : 99 : ?

I go 5 km East, then turn right and go 8km. Then I turn left and go 5 km and then I turn left and go 8 km. At what distance am I from the starting point?

A paper boy cycles 10 km East, then turns South and cycles 3 km, then turns West and cycles 6 km, then turns to his right and cycles 3 km. Where is he now with reference to his starting position?

If 9@3=12; 15@4=22; 16@14=4; then what is the value of 6@2=?

If 12 (20) 16 and 21 (35) 28, then what is value of A in 48 (80) A ?

If "A" denotes "multiplied by", "B" denotes "subtracted from", "C" denotes "added to" and "D" denotes "divided by", then

8 B 31 C 49 D 7 A 16 = ?