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Mensa IQ Letter and Alphabet Series Flashcards

7 cards from real MENSA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Mensa IQ Letter and Alphabet Series flashcards as text

  1. What letter comes next: B, E, H, K, ?

    Answer: N

    Each letter moves forward 3 positions, so K (11) + 3 = N (14).

  2. What letter comes next: Z, X, V, T, ?

    Answer: R

    The series moves backward 2 positions each step, so T (20) - 2 = R (18).

  3. What letter comes next: A, C, F, J, ?

    Answer: O

    The gaps grow by one (+2, +3, +4, +5), so J (10) + 5 = O (15).

  4. What comes next: AZ, BY, CX, ?

    Answer: DW

    The first letter moves forward one step and the second moves backward one step, giving DW.

  5. Which letter is 4 positions after the letter that is 3 positions before M?

    Answer: N

    Three before M (13) is J (10), and four after J is N (14).

  6. What letter comes next: C, F, I, L, O, ?

    Answer: R

    Each step adds 3, so O (15) + 3 = R (18).

  7. What letter comes next: A, B, D, G, K, ?

    Answer: P

    The gaps increase by one each time (+1, +2, +3, +4, +5), so K (11) + 5 = P (16).

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Sources & references

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  1. us.mensa.org — Score release, test delivery, eligibility, fees, passing score, retake policy, renewal, exam information · verified Oct 2026