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Related Questions:
Refer to the following series and answer the question (all numbers are single digit numbers only).
(Left) 1 5 7 9 5 8 1 3 7 6 9 7 4 5 7 5 4 2 3 5 2 3 4 5 3 6 2 (Right)
How many such even digits are there each of which is immediately preceded by an even digit and also immediately followed by an even digit?
Three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which is the letter-cluster
pair that does NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their positions in the letter-cluster.)