Numbers
Dates
Famous sayings
Famous customs
Words with multiple meanings
100

Only divisible by 1 and itself

What is a prime number

100

January 1, 2001

What is the actual first day of the 21st century

100

More desirable than never

What is better late

100

Women's clothing sometimes buttons opposite to men's

What modification was made for situations when a maid dressed the woman of the household 

100

A flower or getting out of chair

What  is (a) rose

200

The year 6009

What is the next year that you cab turn number through 180 degrees and it says the same thing

200

August 6, 1945

When was the A-bomb dropped on Hiroshima

200

Trente sous

What is a French Canadian expression for 25 cents

200

Said to avoid other health issues after sternutation

Why do some say "Bless you" after another person  sneezes

200

Kneeded while making bread or cash

What is dough

300

Imaginary number

What is the result of dividing a number by 0

300

December 8, 1980

When was John Lennon murdered

300

Get out of the way of people already doing it

What is a comeback to someone's saying it can't be done

300

We do not "force" young people to do this dexterity related activity anymore though we used to

What is  switching from left to right-handed

300

Giving a directive or an instruction delivered by a sergeant

What is command

400

Series 1, 2, 3, 5 ...

What is the Fibonacci series

400

A Beatles day - May 26, 1967

When was Sergeant Pepper album released

400

They die young

What happens to good people

400

That's the way people used to ride horses - with swords in the dominant hand

Why do many countries use right-hand drive vehicles

400

A playground apparatus or moving sideways uncontrollably

What is (a) slide

500

The number 0

What number has no negative equivalent

500

January 28, 1986

When did the Challenger explode

500

Taxes and death

What are the only two things one cannot avoid

500

Busses, elevators, trains, and many other entities

Where do we always let people off before boarding

500

The smallest structural organism of an organism or a place to be incarcerated

What is (a) cell

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