How many squares in a draughtboard?

Who invented a 365-day calendar and rubber balls? Is it true or false that one kilomram is less than one gram? How many half inch circles will fit in a 2 and a half inch circle? How many gallons of water is lost through evaporation in a pool? How you find the surface area? What is 658.129 expanded form? What is the relationship between the length and width that will provide the largest area of a three sided rectangle? What is the expanded form of 437600? How many syllables in how large unto the tiny fly? Can negative 4 divided by 5 be a fraction? 35645 to the nearest thousand and ten thousand? Is -20 or 19 greater? How many square feet are in a room 15x20? What person used gambling to make a living and as a result of incorrectly computing the probability of a game caused mathematicians to develop formal probability theory? How do you make 40 degree angle? How many times does 25 go into 99? What is 171 divided by 25? What are the uses and functions of fingerprint? The cost of 6 pens is 3.60 what would 2 dozen cost? How many nickels are in 9.5 kilograms of nickels?