Brain Race!

Here's a game in the form of an intellectual race for the participants.
If you can solve the puzzles the fastest, you will win the game.

◆ How to play ◆

There will be some questions along the running course.
If you answer correctly, you will move on to the next question (and keep going).
Your goal is to answer all the questions on your way.

Try to answer the questions faster than the other players.
Let's aim for 1st place.