Total up all the numbers in a set & divide by the number of numbers to get this, also called the mean.
What is average?
"Firma" or not, this is the Latin word for land.
What is terra?
Look it up online: a 9-year-old boy came up with this word for 1 followed by 100 zeroes.
What is a googol?
The Vikings named an ice-covered island this to lure settlers there.
What is Greenland?
The line along which a bishop in chess moves, it cuts a square into 2 triangles.
What is a diagonal?
In this type of triangle, all 3 angles are less than 90 degrees.
What is acute?
In Latin, sinister means this direction.
What is left?
Frank Epperson was 11 in 1905 when he accidentally invented this frozen summer treat.
Since it's the largest city in Missouri, we wonder why it's not called Missouri City.
What is Kansas City?
World Book says it is "a poisonous, yellowish-green gas with a strong, unpleasant odor", so let's treat our pool with it.
What is chlorine?
2 angles in a plane sharing a common vertex & side are said to be this.
What is adjacent?
"Veni, vidi, vici" translates to this succinct summary of victory.
What is "I came, I saw, I conquered"?
12-year-old Kokona Hiraki medaled in 2021 in this new Olympic event's park discipline, held in what looks like an empty pool.
What is skateboarding?
You'll find Limestone & Peat on Ireland but not the gems this nickname would imply.
What is the Emerald Isle?
On Dec. 5, 1945 5 TBM Avenger torpedo bombers making up flight 19 vanished without a trace in the area called this.
What is the Bermuda Triangle?
A top predator might perch on this, the uppermost vertex of a pyramid or cone.
What is apex?
"Amor" & "mors" are these 2 things of concern to many of us.
What are love and death?
He figured out a system of writing & printing for the blind when he was about 15 & a student at a Paris school for blind children.
Who is (Louis) Braille?
Rock Island is not on an island but a city on the Mississippi River in this state that borders Iowa.
What is Illinois?
Fittingly, the name of this colorful part of the eye goes back to a Greek word for "rainbow".
What is iris?
The Exchange now allows brokers on the floor to execute trades from handheld devices using programs called "algos", short for this type of step-by-step mathematical process.
What is algorithm?
A Latin word for "soul" or "spirit", today in English it means a hostile feeling.
What is animus?
At age 5 Mozart composed one of these dance pieces with a name from a French word for "small".
What is a minuet.
The city of El Centro in this state is actually on its southern border, near Mexicali.
What is California?
His "Elements" is the basis for the modern science of geometry.
Who is Euclid?