Across
- 4. Aristotle defined it as: The science of quantity.
- 8. Inventor born in 1856 in Smiljan
- 10. Happy Birthday in Istanbul
- 12. Inventor of PayPal
- 13. Where to go on the last Friday of the month?
- 16. A very lovely little girl!
- 17. The best wife of all!
- 18. Happy Birthday in Budapest
- 19. Who was the world chess champion the year you were born?
Down
- 1. A great place to spend christmas!
- 2. Happy Birthday in Bratislava
- 3. Happy Birthday in Vienna
- 5. A very lovely little boy!
- 6. Sport with two rackets and a tiny ball
- 7. The most important thing for you!
- 9. Happy Birthday in Bukarest
- 11. Happy Birthday in Zagreb
- 14. How old are you?
- 15. Let's all save the ...