Matti and Ninna engage in a 24-hour drawing challenge where Ninna has to draw various items, and Matti will buy her the items she draws. The challenge starts with Ninna drawing a bracelet, which Matti buys for her. The next challenges involve drawing blindfolded, using an invisible pen, and drawing with a toothbrush. Ninna successfully completes these challenges, earning gifts such as an Apple logo bag and an ice cream. The final challenges involve drawing with feet and then using only fingers as ink. Ninna completes these challenges as well, earning a grand prize of a motorbike.
Here are the key facts extracted from the text:
1. Matti offers to buy Ninna anything she can draw in 24 hours.
2. The challenge starts, and Ninna must draw something within the time limit.
3. Ninna's first drawing is of Federico Chiesa.
4. Matti gives Ninna advice to draw well, as the next drawings will be more difficult.
5. Ninna draws a bracelet with diamonds, and Matti buys it for her as a gift.
6. The second challenge is to draw something while blindfolded.
7. Ninna draws a picture, but it's not clear what it is.
8. Matti reveals that the drawing is a cat, but it's not perfect.
9. The next challenge is to draw using an invisible pen.
10. Ninna draws the Apple logo, and Matti gives her an Apple-themed gift.
11. The next challenge is to draw using a toothbrush.
12. Ninna draws an ice cream, and Matti must buy her an ice cream as a gift.
13. The ice cream must be brought to Matti without melting within 30 minutes.
14. Ninna successfully brings the ice cream to Matti within the time limit.
15. The next challenge is to draw using markers, but not with hands.
16. Ninna draws a picture using her feet, but it's not clear what it is.
17. Matti reveals that the drawing is a house, but it's not perfect.
18. The final challenge is to draw using only fingers.
19. Ninna draws a motorbike, and Matti gives her a toy motorbike as a gift.
20. Matti is impressed with Ninna's drawing skills and decides to give her a real motorbike as a gift.