What does rucsac stand for in maths?

Which country's flag is not square or rectangular in shape? Is 4 and 67 prime and composite? A cube has a volume of 64 cubic cm what is the height? How many numbers are in ups account numbers? How many lines of symmetry does a regular 20-gon have? How do you have more sprems? What is negative five thirds multiplied by negative two thirds? Write any five example of interconversion of matter in your surroundings? How do you find the density of a cylindrical prism? What is the answer to 16 times 13 16ths? How do chemists use ratios? 720 sq km is equal to how many Kilometers? What is a regular hexagon with sides of length s? What is a line passing through the midpoint of a 90 degree angle called? What is 1 more than negative 8? Playing Fantasy 5 in GA how much do you win for 2 numbers? How high is the kite 40m 30m? Does a 1950 hundred dollar bill have a bar code? What is the Roman Numeral of VDCXIX? What is the average arm length for a 5 yr old child?