Verbal Reasoning - Mental Ability Questions

If 80&10 = -8, 50&2 = -25 and 80&16 = -5, then find the value of 20&5 = ?

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
49, 64, ?, 100, 121

Teacher is related to Class in the same way Driver is related to

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

BD, EG, HJ, ?

If "*" denotes "added to", "&" denotes "divided by", "@" denotes "multiplied by" and "%" denotes "subtracted from", then 399 & 19 @ 21 % 41 * 100 = ?

A and B start from the same point. A cycles 8 km South, then turns to her right and cycles 5 km. B cycles 3 km North, then turns West and cycles 5 km, then turns to her left and cycles 4 km. Where is B with respect to A now?

If A=1, HAT=29, then PAN=?

P and Q are brothers. P is the father of S. R is the only son of Q and is married to U. How is U related to S?