Verbal Reasoning - Mental Ability Questions

In the following question, select the missing number from the given series.

2, 5, 12, 27, ?

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

Two motorcycle riders A and B start their rides from the same point. Rider A goes 11 km East then turns to his right and rides for another 9 km. Rider B goes 8 km North,then turns East and rides for 11 km and then turns to his right and rides 7 km. Where is rider A with respect to rider B?

Usha, Tulsi, Divya, Pooja, Rohit, Aakash and Aditi are facing north. Rohit is at the immediate left of Aakash, while Divya is the neighbour of Tulsi and Pooja. The one who is third to the left of Pooja is on one of the ends. Aditi is fourth to the left ofRohit. Who are the neighbours of Tulsi?

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

PEN, MBK, JYH, GVE, ?

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

AN, CQ, ET, ?, IZ

In the question, selection the missing number from the given alternatives.

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