How many edgeds does a pyramind have?

What historic event happen in 1518? What is the square number for 576? Who developed the Difference Engine and Analytical Engine two punched-card controlled general purpose calculators? What is the LCM of 18 15 and 27? What two numbers added together equals 81 but when you subtract theese two numbers equals 37? What does the decimal 0011100100110111 mean? Which of the above lines appear to be perpendicular? What is the answer to 5y-7 equals 2y plus 11? What is fracion is greater 1-4 or 1-3? What is the answer to rounding 90 to the nearest 10? What period is 111011100110101100101000000000? Does a Dodecahedron have 20 sides? If there's 21 boys and 56 girls how many would be in a group? What word is the opposite of truth? What is the function of strip in a vernier calliper? How many number combinations are there in Powerball? What types of quadrilateral can have exactly two right angles? What is the size of each interior angle for a 36 sided polygon? What does 54 c in a p of PC mean? What is 9 divided by 78?