Verbal Reasoning - Mental Ability Questions

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

TER_TE_S_ER_

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?

Arjun is facing east. He walks 10 m in this direction, then turns left and walks for another 10 m, then he turns right to walk 25 m and from there he walks another 10 m towards south. Finally, he walks 50 m to his left. How far is he from his original position?

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

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

PRQ, TVU, YAZ, ?

In a certain code language, "SCENE" is written as "TBFMF". How is "TRAIN" written in that code language?

If I=9 and SLIP=56, then FALL= ?

If 16α1 = 8, 14α6 = 42 and 12α5 = 30, then find the value of 2α6 = ?