What is a sinco?

What shape has 4 perpendicular lines? What is the multiple of 10 between 10000 and 9980? What number has three tens and 7 thousands? One ml is equal to how many micro liters? How many billion people are there in the world? What fraction of a mile is in 1 yard? How many sides does a 36 degree polygon has? What is the simplest radical form of 200? What is negative 2 subtracted by 2? How many cubic meter in a 48 x 48 x 48 crate? What is 754 divided by 29? The number on the first dice is larger than the number on the second? Is 2.7 greater than 0.27? What is the empirical formula of a compound that contains 32.39 percent sodium 22.53 percent sulfur and 45.07 percent oxygen? A number divided by 8? What is the nth term for 3 5 8 12 17? What is the cube root of 729? What is a seven and seven? What is three fifths of 400? How many mm in metre?