Planets: a. Which planet in our solar system has the shortest day - making one rotation about its axis every 10 hours or so? Is it Mercury, Jupiter, or Pluto? b. How many planets have no moons? c. Which planet has the tallest mountain - Earth, Mars, or U

This organ in the human body, about the size of your fist, is located behind the stomach. Its most important function is filtering foreign substances from the blood, as well as helping the body fight infections. What is the name of this organ?

What does a paleontologist study?

In its basic form, this substance is a kind of soap, but when mixed with gasoline, it forms a deadly material used in flame throwers and incendiary bombs. What is it?

Is a light-year a measure of speed, time, or distance?

Which New Testament woman can be considered either a woman whom Jesus cured of evil spirits, or a repentent prostitute who washed the feet of Jesus?

The first microwave ovens were created in which decade: 1970's, 1960's, 1950's, or 1940's?