20 Pattern Recognition Questions with Answers

How to approach it

Pattern practice helps you describe transformations rather than guess.

Work accurately before quickly. State the rule, test every step, then compare choices.

Practice set

Try each prompt before reading its answer or strategy.

• 2, 4, 8, 16, ? — 32 (double).
• 3, 6, 11, 18, ? — 27 (add 3, 5, 7, 9).
• A, C, F, J, ? — O (move 2, 3, 4, 5 letters).
• 1, 1, 2, 3, 5, ? — 8 (previous two terms).
• 64, 32, 16, 8, ? — 4 (halve).
• 5, 10, 8, 16, 14, ? — 28 (alternate ×2 and −2).
• 1, 4, 9, 16, ? — 25 (squares).
• B, E, H, K, ? — N (+3 letters).
• 100, 90, 72, 48, ? — 20 (subtract 10, 18, 24, 28).
• 7, 10, 8, 11, 9, ? — 12 (+3, −2).
• 2, 3, 5, 8, 12, ? — 17 (add 1, 2, 3, 4, 5).
• 81, 27, 9, 3, ? — 1 (÷3).
• Z, W, T, Q, ? — N (−3 letters).
• 4, 6, 10, 18, ? — 34 (differences double).
• 11, 22, 21, 42, 41, ? — 82 (×2, −1).
• 1, 2, 6, 24, ? — 120 (factorials).
• 13, 17, 21, 25, ? — 29 (+4).
• C, F, J, O, ? — U (+3, +4, +5, +6).
• 50, 45, 35, 20, ? — 0 (−5, −10, −15, −20).
• 6, 12, 24, 21, 42, ? — 84 (×2, ×2, −3 cycle).

Practice effects

Practice improves familiarity and strategy, but a short exercise is not a standardized assessment.

Use unfamiliar material and time between sessions for a more honest snapshot.