1. Back to school with enzymes. Multiple Choice 10 Qns A quiz to test your knowledge of enzymes found in organisms. Average, 10 Qns, pdav1, Feb 25 10 Category: Biochemistry Average pdav1 5265 plays
2. British Bird Bonanza Multiple Choice 10 Qns A quiz for all you lovers of British birds that suits both the casual wildlife watcher and the most intrepid twitcher. Tough, 10 Qns, pdav1, Feb 19 14 Category: Wild Birds UK Tough pdav1 1578 plays
3. Robert Harris' "Imperium" Multiple Choice 10 Qns A straightforward quiz about the plot and characters in Robert Harris' book "Imperium." Tough, 10 Qns, pdav1, Jul 09 07 Category: Harris, Robert Tough pdav1 206 plays
4. Cryptic world cities Multiple Choice 10 Qns I will give a cryptic clue to a major world city, you type the name of the city. Spelling is important. Very Difficult, 10 Qns, pdav1, Jun 20 06 Category: Cryptics for Experts Very Difficult pdav1 735 plays