Sequences

How to play

A number-pattern puzzle. Study the five numbers shown, work out the rule connecting them, and type the number that comes next.

Rules

  • Five numbers are shown in sequence, followed by a question mark.
  • Type the number you think comes next and press Enter or Submit.
  • Every answer reveals the rule, whether you got it right or wrong.
  • Answer all 10 sequences to see your final score.

Tips

Check the gap between consecutive numbers first — if it's constant, it's simple addition; if it's growing, look for doubling, squares, or a running total like Fibonacci.