Dinosaurs: Could a dinosaur scratch his own itch?
Dinosaurs: Was Antarctica once warm and did dinosaurs live there?
Fingers: Why do we have five fingers?
Intelligence, species: How can one species measure the intelligence of another? Are trees smarter than humans?
Man:  How old is man?
Species: what makes sex work? What enables a male and a female to produce offspring?
Human skin color: why did human skin color evolved to lighter shades?
 

Alcohol: does alcohol kill brain cells?
Chiles: how hot are your chiles?
Coffee grounds: When I'm out camping, I boil coffee in a pot and then, to settle the grounds, I drop an egg shell in. Does adding the shell make any difference?
Coffee, hot: why doesn't hot coffee burn your mouth? The same coffee would hurt if poured on your arm.
Corn: is the tiny corn appearing in Asian dishes really corn?
Digesting genes: What happens to genes we eat?
Egg cartons: what do the dates on egg cartons mean?
GM food: On my table everyday, there are genetically modified rice, vegetables, and so on. Who knows if it is good or not for us?
Green eggs:  Why do the yolks of overcooked boiled eggs become green?
Ice cream: Who first "invented" ice cream and when?
Jell-o:  What is gelatin?  Is it made from horses?
LifeSavers: Why do 5-flavored LifeSavers only show four colors on the package?
Lobsters: Why are lobsters cooked alive?
Marshmallows: How are marshmallows made?
Peanuts: how do peanut processors get salt into roasted, salted peanuts in the shell?
Peanuts, grow: Where and how do peanuts grow?
Shrimp: Why do shrimp and lobsters turn orange-red when cooked?
Wine: is wine alive?
 

Indian corn: why the colors?
Digesting genes: What happens to genes we eat?
GM food: On my table everyday, there are genetically modified rice, vegetables, and so on. Who knows if it is good or not for us?
No-father fertilization: Is it possible to take the chromosomes from one female egg and inject them into another female egg so they attach and actually form a fertilized egg?