Daily logic puzzles: find the next number
Five number sequence puzzles, generated from today's date so everyone gets the same set. Each answer comes with a one-line explanation of the rule.
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Questions and answers
How do number sequence puzzles work?
You are shown a short run of numbers produced by a hidden rule, such as 'add 3', 'double it' or 'add the two previous numbers'. Your job is to spot the rule and pick the next number.
What is the fastest way to solve a sequence puzzle?
Check the differences between neighbouring numbers first. If they are constant, the rule adds a fixed amount. If the differences themselves grow steadily, try multiplication, squares or a Fibonacci-style sum. Alternating patterns often hide two interleaved sequences.
Is there a new puzzle every day?
Yes. The daily set is generated from the date, so everyone playing on the same day sees the same five puzzles, and a fresh set appears at midnight UTC.
How do adaptive puzzle games work?
An adaptive game adjusts difficulty based on your recent results. SkillArena raises difficulty when your recent accuracy is above about 86% and lowers it when it drops below about 72%, so challenges stay hard enough to be interesting without becoming unfair.