Numera: Math Riddles & Duels

Solve clever math riddles in seconds, risk your pot in the Countdown Cauldron, and go head-to-head with players around the world every day. Numera is the fast math-riddle game for everyone who loves mental math — free, no sign-up, playable instantly. No login, no paywall: tap Start and your first riddle is already there. FOUR MODES, ONE BRAIN WORKOUT • Daily Riddles: 10 fresh puzzles every day — your daily ritual to keep the streak alive. • Countdown Cauldron: push your luck! Every correct answer multiplies your pot. Keep going, or cash out before the cauldron boils over? • 1v1 Battle: fast real-time duels against other players, or private friend lobbies with a join code. • Endless: train without limits and chase new best times. RIDDLES THAT CHALLENGE YOU Number pyramids, shape equations, sequence logic, balance puzzles and more — from a gentle warm-up to a real brain-teaser. Pure mental math, number puzzles and logic, presented cleanly and distraction-free. PROGRESS THAT PAYS OFF Earn XP, level up, complete daily quests and unlock 20+ achievements. Collect coins and prestige points, and equip titles, frames, themes, avatars and victory effects in the shop. Climb global and per-mode leaderboards, and grab exclusive rewards in the monthly season. FAIR & FREE-FIRST Numera is free to play and stays that way. No gameplay behind a paywall and never an ad mid-puzzle. Ads appear occasionally between rounds; rewarded videos for hints or a second chance are always started by you. Save your progress anytime with Google, a magic link or a passkey. Ready? Your next riddle is waiting.