Verbal Reasoning - Mental Ability Questions

Pointing to a lady, Anju says, "She is the sister of my brother's mother". How is the lady related to Anju?

Ryaan is Vehaan's mother's sister's father's only son's son. How is Ryaan related to Vehaan?

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 = ?

If 8*9 = 36, 12*4 = 24 and 14*6 = 42, then find the value of 18*6 = ?

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

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

76 B 19 C 7 A 3 D 25=?

In the following question, select the related letters from the given alternatives.
JPSW : LQUX : : MRFT : ?

If 'x' means '-', '-' means 'x', '+' means '/' and '/' means '+', then what is the value of 15 - 2 / 900 + 90 x 100?