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. 12, 60, 240, 720, ?

In a row of swimmers Manish, is 23rd from the left end. Ramesh is 11 ranks to the left of Manish. If Ramesh is 16th from right end, then how many swimmers are there in this row?

How many such numbers are present in the below arrangement which are immediately preceded by a consonant and immediately followed by a letter?

Q@A3RI4*6T4W4O2^E$6S

In each questions given below three statements are followed by two conclusions numbered I and II. You have to take the three given statements to be true
even if they seem to be at variance with the commonly known facts. Read the conclusions and decide which conclusion logically follows from the three given statement disregarding commonly known facts. Give answer

Statements:
Some books are papers.
No paper is magazine.
All magazines are pens.
Conclusions:
I. Some books are not magazines.
II. Some books are magazines.

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

d_ba_c_a_cb_

The weights of 4 boxes are 30, 40, 50 and 100 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

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

19, 28, 39, 52, ?, 84

Two airliners start from the same airport. A flies 20 km South. B flies 35 km East, then turns South and flies 45 km, then turns to its right and flies 35 km. Where is B with respect to A now?