What is about 200 years old?

Is half of a decimeter about 3cm? Is 95 a rational number? What is the product of 7 9 and 3? What is 3987? How many milliliters in 250 cl? What is the remainder when 68 is divided by 3? What is 20 divided by 275? How many times does 12 go into 2? What is the number 28 divisible by? What is the error magnitude? What is the volume of a cylinder 15 ft h and 5 ft radius? What is the decimal for one tenth greater than 3.59? What is the best estimate for 22 times 39? Is Higgins robin masters on magnum pi? How many times does 35 go into 285 evenly? What causes juddering when going round a corner at 40? What math term can you figure out which Latin word means many? what is 30x6? What is 46765 plus 9558? What is the only number you cant make with roman numerals?