1232 | Science & Nature | Multiple Choice | Easy | What is the primary addictive substance found in tobacco? |
1233 | Science & Nature | Multiple Choice | Easy | Alzheimer's disease primarily affects which part of the human body? |
1234 | Geography | Multiple Choice | Medium | The World Health Organization headquarters is located in which European country? |
1235 | Science & Nature | Multiple Choice | Medium | Who developed the first successful polio vaccine in the 1950s? |