Find the next number in the following number series?
31, 29, 24, 22, 17, ?

Find the next number in the following number series?
7, 10, 8, 11, 9, 12, ?

Select the figure that will come next in the following figure series.

Select the letter that can replace the question mark (?) in the following series.
X, U, P, M, ?, E

Select the option that will fill in the blank and complete the given series.
6, 10, 19, 35, 60, _

Identify the number that does NOT related to the following series.
25, 28, 23, 30, 21, 33

Select the figure that will come next in the following figure series.

Select the option that will fill in the blank and complete the given series.
CDZ, DGE, EJJ, FMO, GPT___