Verbal Reasoning - Mental Ability Questions

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

XXXOXXX, XXXXOXX, XXOXXXX, XXXXXOX, XOXXXXX, ?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
K, J, L, I, M, ?

Select the related word/letters/number from the given alternatives.
Frog : Amphibian : : Cobra : ?

From a point, Lokesh starts walking towards south and after walking 30 metres he turns to his right and walks 20 metres, then he turns right again and walks 30 metres. He finally turns to his left and walk 40 metres. In which direction is he with reference to the starting point?

In the following question, select the related number pair from the given alternatives.
534 : 2 : : ? : ?

If 4 x 9 x 3 = 4 and 5 x 3 x 1 = 3, then
9 x 9 x 7 = ?

You go in the south direction, then turn left, then again take a left and then go to the right. Which direction are you facing now?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
AG, LR, WC, HN, ?