Daily Odd One Out
Six rounds. Four choices. One doesn't belong. Everyone gets the same set today.
Cognilo: Brain Training Games
Cognilo serves the Daily 5: five short brain games picked for your level across memory, focus, logic, numbers, spatial and language. Untimed, no account.
Get it free on the App StoreHow to play
Rounds mix even and odd numbers, multiples, square numbers, primes and word categories. After each answer you see the reason. The streak is saved on this device only.