| Hint | Answer | % Correct |
|---|---|---|
| Not closed | Open | 95%
|
| This country borders Yemen and Saudi Arabia | Oman | 94%
|
| A tool you can row a boat with | Oar | 91%
|
| A form of theater known for its beautiful singing and dramatic roles | Opera | 89%
|
| The layer in the Earth's atmosphere that protects us from the sun's UV rays | {Ozone} layer | 88%
|
| A foul smell | Odor | 86%
|
| The state located above Texas | Oklahoma | 83%
|
| The reproductive organ that carries human eggs | Ovary | 78%
|
| A type of tree featured in Minecraft | Oak | 70%
|
| The biggest city in Nebraska | Omaha | 61%
|
| The opposite of Oriental | Occidental | 48%
|
| The taxonomic domain of classification between Class and Family | Order | 44%
|
| An administrative division or region in Russia; a Russian state | Oblast | 34%
|
| The capital of Burkina Faso | Ouagadougou | 33%
|
| A human happiness hormone, often called the "love hormone" | Oxytocin | 20%
|