Biology
Food
Number, Please
Superstitions
Law
400

Of all mammals, this one takes longest to mature

Man (humans)

400

An ingredient in tortillas, it's grown on nearly half the cultivated land in Mexico

Corn

400

When a triumvirate rules, this many people are in charge

3

400

Breaking one is bad luck because not only is your image destroyed but possibly your soul too

Mirror

400

Class of crime more serious than a misdemeanor, with a penalty of more than a year in prison or death

Felony

800

The human body's largest bone

Femur

800

Related to onions, these are chopped, added to sour cream & put on baked potatoes

Chives

800

Number of miles in the annual race held on Memorial Day at the Indianapolis Motor Speedway

500

800

Good fortune goes to the person who gets the larger half of this object from a turkey's remains

Wishbone

800

Minimum age at which most states allow marriage without parental consent

18

1200

In 1956 scientists determined a normal human cell has this many chromosomes  

46

1200

Tea made from this feline favorite supposedly cures insomnia in humans

Catnip

1200

A sonnet is a poem of this many lines, usually written in iambic pentameter

14

1200

A dog doing this means someone's death is near

Howling

1200

A person is guilty of this crime if he willfully makes a false statement under oath

Perjury

1600

Light-sensitive layer of nerve tissue covering the back 2/3 of the eyeball, it's an extension of the brain

Retina

1600

If you're eating ostriche in Napoli, you're eating this seafood, not a big bird

Oysters

1600

Boccaccio wrote "The Decameron", which literally means this many days' work

10

1600

It defies the natural order of things to open it indoors, & it acts as a screen against good fortune

Umbrella

1600

A judgment or decision of a court cited as an example or analogy to justify a similar decision

Precedent

2000

This Swedish botanist, known for his system of classification, was the first to note that whales are mammals

Carl Linnaeus

2000

This Polish sausage that looks like a big frankfurter is coarser in texture & contains garlic

Kielbasa

2000

If you know the First Congress met in 1789, you can figure out this is the number of the current one 

101st

2000

Soldiers who were smoking on the front at night may have been the source of this unlucky act

Lighting three on a match

2000

Law that derives authority from custom & usage, especially the ancient unwritten law of England

Common Law