Study the following letter sequence and answer the question: (Left) M G Q X V W K H R C Y U J D L S Z F B O T E A P I N (Right) If the order of the last eleven letters in the given sequence is reversed, which of the following will be the fifth letter to the left of the twelfth letter from the left end?

Refer to the following number series and answer the question. (Left) 2 8 9 3 5 7 6 3 1 4 8 9 3 5 1 5 6 2 1 4 7 5 2 3 8 2 9 (Right) How many such odd digits are there, each of which is immediately preceded by an odd digit and also immediately followed by an even digit?

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? CAR78, GEV86, KIZ94, OMD102, ?