Which simple machine is which?

Roller coaster, propeller, bathtub
See saw, scissors, stapler
Window blinds, oil derrick, winch
Door knob, windmill, wagon wheel
Lightbulb, drills, submarine hatch
chisels, sledge hammer, shark tooth

Wonderful Worldly Women

Identify these women who changed the world. Then use the highlighted letters to spell the name of another fantastic female.

Led the French army during the Hundred Years' War
The last pharaoh of Eygpt
First female Prime Minister of Canada
An escaped slave who led others to freedom through the underground railway
This infamous British monarch was a patron of Shapeskpeare's
First computer programmer

Delightful Detectives

Here are the authors. Name the detectives. Then use the highlighted letters to spell a new word.

Carolyn Keen's teen crime solver
Arthur Conan Doyle's famous consulting detective
Dashiell Hammett's hard-boiled hero
Agatha Christie's shrewd old snoop
Franklin W. Dixon's team of brother detectives
Real name of Philip Pullman's Victorian-era investigator, Sally
Gertrude Chandler Warner's Alden orphans