Letter Sequence Quiz: 10 Alphabet Patterns to Complete

This letter sequence quiz asks you to find the next letter in ten alphabet patterns, from skips that grow by one and steps that run backward to letter pairs, mirror pairs from both ends of the alphabet, and hidden patterns built from the months starting with January, the days of the week starting with Monday, the planets starting with Mercury and the colors of the rainbow starting with red. Ten questions, one pattern each.

Start Letter Sequence Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 90 Seconds

Question 1 / 10 Time: 90s

Growing gaps
What letter comes next: A, C, F, J, ...?
Backward
What letter comes next: Z, X, V, T, ...?
Two lines
What letter comes next: A, Z, B, Y, C, ...?
Months
What letter comes next: J, F, M, A, M, J, J, ...?
Days
What letter comes next: M, T, W, T, F, ...?
Planets
What letter comes next: M, V, E, M, J, S, U, ...?
Pairs
Which pair comes next: AB, DE, GH, ...?
Growing gaps
What letter comes next: B, D, G, K, P, ...?
Rainbow
What letter comes next: R, O, Y, G, B, I, ...?
Mirror pairs
Which pair comes next: AZ, BY, CX, ...?

Explanations: answer key for all 10 questions

Q1: What letter comes next: A, C, F, J, ...?
Answer: O
The gaps grow by one each time: skip 1, then 2, then 3 letters. After J you skip 4 letters, K, L, M and N, to reach O.
Q2: What letter comes next: Z, X, V, T, ...?
Answer: R
The sequence moves backward through the alphabet, skipping one letter each time. After T comes S, which is skipped, so the answer is R.
Q3: What letter comes next: A, Z, B, Y, C, ...?
Answer: X
Two sequences are woven together: A, B, C from the start and Z, Y from the end. The next letter from the end is X.
Q4: What letter comes next: J, F, M, A, M, J, J, ...?
Answer: A
These are the first letters of the months: January, February, March, April, May, June and July. August comes next.
Q5: What letter comes next: M, T, W, T, F, ...?
Answer: S
These are the first letters of the days of the week, starting with Monday. After Friday comes Saturday.
Q6: What letter comes next: M, V, E, M, J, S, U, ...?
Answer: N
These are the planets in order from the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn and Uranus. Neptune comes last.
Q7: Which pair comes next: AB, DE, GH, ...?
Answer: JK
Each pair uses two letters in a row and then skips one. After GH, the letter I is skipped, so the next pair is JK.
Q8: What letter comes next: B, D, G, K, P, ...?
Answer: V
The steps forward grow by one: 2, 3, 4 and 5 places. A step of 6 places from P lands on V.
Q9: What letter comes next: R, O, Y, G, B, I, ...?
Answer: V
These are the colors of the rainbow in order: red, orange, yellow, green, blue and indigo. Violet comes last.
Q10: Which pair comes next: AZ, BY, CX, ...?
Answer: DW
The first letter moves forward from A, while the second moves backward from Z. The next pair is D with W.

Letter Sequence Quiz – Spotting Patterns in the Alphabet

Letter sequences are a classic type of reasoning puzzle. You see a short series of letters and must work out the rule that produces them. The rule may be a fixed step, a step that grows, two series woven together or a hidden list such as the months of the year. Finding it trains the same pattern-spotting skills used in many aptitude tests.

A useful first step is to turn letters into numbers: A is 1, B is 2 and so on up to Z at 26. The sequence A, C, F, J then becomes 1, 3, 6, 10, where the gaps grow by one each time. Writing the numbers down makes hidden steps much easier to see, especially when a sequence moves backward from Z.

Some puzzles combine two patterns. A, Z, B, Y, C mixes letters moving forward from the start of the alphabet with letters moving backward from the end. Pairs such as AZ, BY and CX use the same mirror idea, since each pair adds up to 27 when you convert the letters to numbers.

Other sequences are not about the alphabet at all. J, F, M, A, M stands for the months, M, T, W, T, F for the days of the week, and R, O, Y, G, B, I for the colors of the rainbow. These puzzles reward general knowledge as much as logic.

Pattern questions appear in many school entrance exams and job tests. Similar pattern-finding ideas underlie well-known nonverbal tests such as Raven's Progressive Matrices, which use shapes instead of letters.

Practicing letter sequences builds focus, memory for the alphabet and confidence with abstract patterns.

What This Quiz Teaches

This quiz is perfect for students, puzzle fans and test takers.

How to turn letters into numbers
Sequences with growing gaps
Backward and woven sequences
Mirror pairs from both ends
Patterns from months, days and planets
The colors of the rainbow

Quick Facts About Letter Sequences

The English alphabet has 26 letters.
Mirror pairs like AZ and BY always add up to 27.
The rainbow order is often remembered as ROY G BIV.
Letter series questions appear in many aptitude tests.
Raven's Progressive Matrices were first published in 1938.
Writing letters as numbers is the fastest way to find a rule.