Verbal Reasoning - Mental Ability Questions

In the following series, one letter is missing as shown by the question mark. Select the missing term from the given options.

Q, O, L, H, ?

Select the missing number in the given responses?

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

Spring, Summer, Monsoon, ?

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

Jaipur, Rajasthan, India, ?

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

Universe, Galaxy, Solar system, ?

In the following series, one term is missing as shown by the question mark (?). Select the missing term from the given options.

A, BC, DEF, GHIJ, ?

Weight of Arun is 4/7 of the weight of Bablu. Weight of Bablu is 1/2 of the weight of Ram. Weight of Ram is 4 times of the weight of Deep. Weight of Deepis 1/9 of the weight of Ankit. Whose weight is more than the weight of Deep but less than the weight of Bablu?

Among four cars, weight of T1 is twice the weight of T2. Weight of T3 is half of the weight of T2. T4 is 25 kg heavier than T2, but 25 kg lighter thanT1. What is the difference (in kg) between the weight  of T4 and T3?