Calendar math
- 100
How many days are in a Gregorian leap year?
- 200
What date is the extra day in a Gregorian leap year?
- 300
Which century year from…
In the game - 400
How many leap years…
In the game - 500
A Gregorian year averages…
In the game
Mixed bag
Numbers and dates quiz — Mixed bag
The “Numbers and dates” quiz — Mixed bag. It has 25 questions in five categories: Calendar math, Discovery dates, Science in numbers, Standards & measures, Math landmarks. Questions get harder as the points go up, from 100 to 500.
A peek at the questions
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
Discovery dates
- 100
On what date did Apollo 11 make the first crewed landing on the Moon?
- 200
On what date did the Wright brothers make the first successful powered, controlled airplane flight?
- 300
On what date was…
In the game - 400
On what date was…
In the game - 500
On what date did…
In the game
Science in numbers
- 100
How many planets are officially recognized in the Solar System?
- 200
How many chromosome pairs does a typical human diploid cell have?
- 300
Which isotope used to…
In the game - 400
Which physical quantity in…
In the game - 500
Which named quantity equals…
In the game
Standards & measures
- 100
How many cards are in a standard French-suited deck without jokers?
- 200
How many keys does a standard modern full-range piano have?
- 300
Which road race has…
In the game - 400
How many digits does…
In the game - 500
Which navigation unit of…
In the game
Math landmarks
- 100
What value does M represent in modern Roman numeral notation?
- 200
What is the sum of a triangle's three interior angles in Euclidean geometry?
- 300
To three decimal places…
In the game - 400
How many zeros follow…
In the game - 500
What is the smallest…
In the game
Play this quiz
All 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.
How it works
- Pick a quiz and press “Play”.
- Send students or friends the link — they join from a phone or a computer.
- Choose questions on the board, buzz in first and collect points.