Find the number of squares in the given figure.

Refer to the following number series and answer the question that follows. Counting to be done from left to right only.
(All numbers are single-digit numbers only.)
(Left) 8 7 4 1 5 7 4 8 6 6 6 2 5 5 8 4 3 9 4 3 1 7 7 5 1 2 5 (Right)
How many such odd numbers are there each of which is immediately preceded by an even number and also immediately followed by an even number?

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?
FCF 47 HEH 58 JGJ 69 LIL 80 ?

Refer to the following number series and answer the question that follows. Counting to be done from left to right only. (All numbers are single-digit numbers only.)
(Left) 3 1 2 9 8 4 1 5 4 2 1 5 8 1 3 4 7 5 3 6 5 7 6 6 1 1 2 (Right)
How many such odd numbers are there each of which is immediately preceded by an odd number and also immediately followed by an odd number?

Refer to the following series and answer the question. (All numbers are single-digit numbers only) (Counting to be done from left to right only).
(Left) 5 4 3 6 7 8 2 1 9 3 3 2 4 5 (Right)
How many such odd numbers are there, each of which is immediately preceded by an even number and immediately followed by an even number?

What should come in place of the question mark (?) in the given series?
76 81 91 111 151 ?

Select the number from among the given options that can replace the question mark (?) in the following series.
121, 144, 169, 196, ?

What should come in place of the question mark (?) in the given series?
61 66 72 77 83 ?

Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?
PDH, RFJ, THL, VJN, ?

Refer to the following number, symbol series and answer the question. Counting to be done from left to right only (all numbers are single digit numbers only).
(Left) # 5 1 & & 5 + 8 3 & * < \ 9 $ > > * 5 / 7 (Right)
How many such symbols are there each of which is immediately preceded by another symbol and also immediately followed by a number?

Refer to the given series and answer the question that follows. (All numbers are single digit numbers only.) Counting to be done from left to right.
(Left) 7 4 3 6 9 3 6 4 5 7 4 5 2 3 8 4 1 5 2 3 7 1 2 5 7 9 8 (Right)
How many such even digits are there, each of which is immediately preceded by an odd digit and also immediately followed by an even digit?