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?

ab_ _abbc_aa_bbb

In the following question, select the odd word pair from the given alternatives.

A post-man starts cycling from his post office. He cycles 7 km South, then turns West and cycles 5 km, Then turns North and cycles 6 km, then turns to his right and cycles 5 km. Where is he now with reference to his post office?

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

VUT, ONM, GFE, ?

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

GB, ID, LG, ?

Three positions of a cube are shown below. What will come opposite to face containing 'I'?

Two labourers L and M start at the same point. L walks 10 m South, then turns left and walks 25 m. In the meanwhile M walks 20 m West, then turns to his right and walks 15 m , then turns East and walks 45 m. Where is M with respect to L?

In each of the questions below are given three statements followed by three conclusions numbered I, II, and III. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow(s) from the given statements disregarding commonly known facts.
Statements:
Some tables are chairs.
All chairs are benches.
All benches are desks.
Conclusions:
I. Some desks are tables.
II. Some benches are tables.
III. Some desks are chairs.