Verbal Reasoning - Mental Ability Questions

If X's mother is the only daughter of Y's father, then Y's husband 's father is X's ___.

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

XFB,UGD ,RIG ,OLK, ?

If in a code language 3456 = ROPE and 15526 = APPLE then 54613 = ?

Amar moved 20km towards east in car from his home to reach hospital. From there he turned left and moved 30km and again move 20km left to reach his school. How far is his school from hospital?

If 13 # 9 = 94 and 18 # 7 = 100, then 24 # 6 = ?

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

Jupiter, ? , Uranus, Neptune

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
Oxygen, Toil, Arouse, Arson, Tenuous, ?

In the following question, select the missing number from the given series.
1, 3, 6, 11, 18, ?