Verbal Reasoning - Mental Ability Questions

Facing the East, Rahul turned left and walked 10m, then he turned to his left again and walked 10m. He then turned towards his right and went straight to cover 25m. In which direction is he from his starting point?

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

In the following question, select the related letter pair from the given alternatives.PIR : OHQ : : ? : ?

From the given alternative words, select the word which cannot be formed using the letters of the given word:
PRONOUNCEMENT

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
C A E, F D H, I G K, ?

Select the related word/letters/numbers from the given alternatives:
3 : 243 :: 5 : ?

Find out the odd word/letters/number/number pair from the given alternatives.

If 4Δ2 = 60, 7Δ9 = 160 and 8Δ3 = 110, then find the value of 3Δ2 = ?