Which of the following numbers will replace the question mark (?) in the given series?

13, 21, ?, 69, 133

Which among the following factors contributes to Earthquake?

1. Location

2. Distance from the epicenter

Select the number from among the given options that can replace the question mark (?) in the following series.

Alok ranked 19th from the top and 38th from the bottom in a class. How many students are there in the class?

Find the missing term in the following number series.

45, 65, 165, 345, ____

Select the option figure that will replace the question mark (?) in the figure given below to complete the pattern.

Select the set in which the numbers are related in the same way as are the numbers of the following sets.