What are quartoplets?

How many hundreds in 19900? How far does a five pound rock fall in five seconds? Write a real equation problem that you could answer by solving the equation 8 plus 60 28? What are the first six multiple of 2? What do you call a thousand square feet? What is the percent of three fifteenths? Has the arrowhead got any equal angles? What does the abbreviation of kcckm reflect? Does messy tables equal bad grades? What is the lcd of 11 9? What are the y values of a function? What are some interesting facts about pi? What does at metuka amitit mean? What are every possible 4 digit number sequences possible without repeating the same 4 numbers in one sequence? How do you work out 6.4 x 1.1? What is 1200 times 4? What 4 to the 6 power? What decimal is 15.0 when rounded to the nearest tenth? How long is a normal shoelace? What is is the percent of 0.75?