A Letter Sequence

O T T F F S... What is the next letter?

Hint: Try to connect this to a sequence of numbers.

Solution: Each letter is the first letter of the basic numbers. One, Two, Three, Four, Five, Six...so the next letter is S for Seven.

Try another riddle

Games

Reset the Sign

Reset the Sign

The longer you wait to reset the sign to zero, the higher your score. But don't wait too long, or someone else might reset it!

Hold the Button

Hold the Button

Press and hold the button for a long as you can endure. You might even get on the leaderboard!

The World's Easiest Game

The World's Easiest Game

Because the world's hardest game is way too hard.

Do Not Press

Do Not Press

Whatever you do, you must not press the red button.

More games

Puzzles

Doorways

Doorways

Travel through all the doorways exactly once.

Connect the Colors

Connect the Colors

Connect the colors without crossing lines.

Connect the Dots

Connect the Dots

Draw four straight lines, without lifting your imaginary pencil, that touch all nine dots in the grid.

Toothpick Equality

Toothpick Equality

Add a single toothpick to form a mathematically true equality.

More puzzles