| What it Isn't | What it Is | rationale | % Correct |
|---|---|---|---|
| a nurse | a doctor | medical staff at a hospital | 90%
|
| tea | coffee | caffeinated beverages consumed hot | 90%
|
| an orange | an apple | most popular fruits; proverbially can't be compared | 82%
|
| a cloudy day | a sunny day | weather forecasts involving sky opacity | 82%
|
| a lion | a tiger | biggest cats | 79%
|
| pepper | salt | common condiments applied to food at the table | 79%
|
| a beard | a moustache | facial hair below/above lip | 69%
|
| the color green | the color red | primary colors; traffic lights; red-green color blindness | 63%
|
| Mars | Venus | planets nearest Earth; Roman gods of war/love; symbols men/women | 58%
|
| a tragedy | a comedy | traditional forms of drama with sad/happy endings | 50%
|
| anorexia | bulimia | common eating disorders | 48%
|
| geometry | algebra | branches of intermediate-level mathematics | 46%
|
| a Macintosh computer | a Windows PC | most common desktop operating systems | 42%
|
| a marathon | a sprint | longest/shortest style of competitive races | 37%
|
| the book of Exodus | the book of Genesis | first two (and most famous) books of the Bible | 33%
|
| the Netherlands | Belgium | the Low Countries; similar size and history, but Protestant/Catholic | 29%
|
| a Great Dane | a Chihuahua | largest/smallest dog breeds | 26%
|
| Germanic languages | Romance languages | major language families of Western Europe | 24%
|
| the number 7 | the number 13 | lucky/unlucky prime numbers | 23%
|
| an insect | an arachnid | classes of terrestrial arthropods | 20%
|
| Harry Potter | The Lord of the Rings | bestselling series of fantasy novels; and the top two films of 2001 | 19%
|
| incandescent light bulbs | fluorescent lamps | common forms of indoor lighting | 16%
|
| a coupé | a sedan | automobile types: two-door vs. four-door | 13%
|
| the city of Aleppo | the city of Damascus | major cities of Syria; historically competing sultanates | 10%
|
| Johannes Vermeer | Rembrandt van Rijn | famous painters of the Dutch Golden Age | 7%
|
| John Adams | Thomas Jefferson | 2nd and 3rd presidents of the U.S., from opposing political parties | 7%
|
| quantum mechanics | general relativity | major (but incompatible) theories of modern physics | 3%
|