| 1 | What is the only difference between a poisonous animal and a venomous animal? Poison can be absorbed through skin, inhaled, or consumed, whereas venom has to enter the bloodstream directly, most commonly through bite |
| 2 | Who was the only US president to serve more that 2 terms? Franklin D. Roosevelt (His 3rd term started 1939. In 1951, the law was changed to limit presidents to 2 terms, to "keep abuse of power in check" |
| 3 | Of all the lakes in the Lake District, which is the only one to have the word "lake" in its name? Bassenthwaite Lake (Most of the others end in mere, water or tarn. Windemere is not "lake Windemere") |
| 4 | Who is the only British Prime Minister to have been potentially eligible for the office of the President of the United States? Boris Johnson (Born in New York. Until 2016 he was a natural-born citizen, but had not completed the required 14 years of US residence. |
| 5 | What is the only difference between a hurricane and a typhoon? They are the same, except for where they occur. Hurricanes occur in the Atlantic or Eastern Pacific, Typhoons occur in the Western Pacific, and affect Asian countries. |
| 6 | What is the only even prime number? 2 |
| 7 | What is the only English island city? Portsmouth |
| 8 | What is the only freely flying mammal? A bat |
| 9 | Which of these US presidents is the only one NOT to have a middle name: Dwight D. Eisenhower, Harry S. Truman, Lyndon B. Johnson, John F. Kennedy? Harry S. Truman, (The S was not actually a name). (Dwight David Eisenhower, Lyndon Baines Johnson, John Fitzgerald Kennedy) |
| 10 | Who is the only woman to be mentioned by name in the Quran? Maryam (or Mary). (Other women are mentioned but examples are "wife of Nooh" or "spouse of Adam" etc) |