Coding and Decoding Questions

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

X_ZX_YY_ZX_Z

If "S" denotes "multiplied by", "P" denotes "subtracted from", "R" denotes "added to" and "Q" denotes "divided by", then 14641 Q 121 P 100 S 2 R 100 = ?

Two motorcyclists P and Q start from the same point. P rides 11 km West, then turns South and rides 16 km, then turns to his right and rides 14 km. Q rides 30 km South, then turns to his right and rides 25 km. Where is Q with respect to P now?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

75 - 5 + 25 ÷ 125 = ?

If WORK = 7935, ROCK = 3587 and WART = 1945, which digit stands for T?

If EXPLAIN is coded as BUMIXFK, then how will GYM be coded as?

In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation.

6 x 2 x 9 = 269

8 x 7 x 1 = 781

4 x 1 x 3 = ?

If D = 4, DOG = 26, then find the value of ANIMAL= ?