13884 | Entertainment: Film | Multiple Choice | Easy | Who was crushed under Dorothy's falling house in The Wizard of Oz? |
13883 | Science & Nature | Multiple Choice | Easy | Alzheimer's disease affects what vital organ of the human body? |
13881 | Science: Gadgets | Multiple Choice | Medium | How does a centrifuge separate heavy and light particles? |
13874 | Entertainment: Books | Multiple Choice | Medium | Which Mark Twain work was banned from public libraries after it was deemed 'more suited to the slums than intelligent, respectable people'? |