What is Form16H and FORM 16G?

What is the measurement of a 5 sided shape? What is the symbol used for pi and where dose it originate from? How do you draw a semi cardinal point? How is maths used in car racing? How many presents can santa fit into an empty sack? Multiply 146.6 x 2.2? Is a biomass pyramid more stable with a wide base or a narrow base? -4 times 9 times -5? If the sphere shown above has a radius of 20 units then what is the approximate volume of the sphere? What is 853 rounded to the nearest ten? How do you say 4567.98 in word form? How much did matches cost 1827? Is 561 divisible by 3? How many rectangles have the same are as its perimeter? What did Al-Khwarizmi do? What did people do before they knew what a meter was? If 5x-10 equals 45 what is the value of X? What is the area of a sector whose central angle is 93 in a circle with a radius of 20 feet? How big is a 1.50 cm mass? How can you convert numeric data between different number systems using a floating point?