Once upon a time, in a faraway land, there was a brave young knight named Alex. Alex lived in a beautiful castle on top of a hill. One sunny morning, as he was wandering through the castle, he discovered a mysterious door.

Curiosity sparkled in Alex's eyes as he pushed the heavy door open. What a surprise! It led him to a magical room full of puzzles and riddles. It was the puzzle room! Alex knew he had to solve the puzzles to continue his adventure.

The first puzzle was a math problem. Alex saw a group of 3 knights. Each knight had 2 swords. How many swords were there in total? Can you solve this, young reader?

Alex, being a math expert, quickly figured out the answer was 6 swords. With a smile on his face, he moved on to the next challenge.

In the next room, Alex encountered a friendly talking dragon. The dragon had orange scales and big green eyes. It said, 'To continue your quest, you must solve this puzzle: If you have 4 gold coins and you give 2 to a friend, how many do you have left?'

Alex thought for a moment and realized the answer was 2 gold coins. The dragon nodded approvingly, allowing Alex to move forward.

As the adventure continued, Alex reached the final room. There stood a magical lock with numbers on it. The clue said, 'The code to unlock the door is a number that comes after 9 and before 12. Can you find the code?'

Alex knew the answer was 10 and excitedly inputted the code. The door slowly creaked open, revealing a treasure room full of sparkling jewels and gold. Alex's heart was filled with joy.