How many things make a dozen?

What is the meaning of a 'no brainer'? How do you make 10 by using five nines? Can a square fit in a trapezoid? Roman numeral for huindu-arabic for xcviii? How many 3 digits number can be formed from the digits 23567 and 9 which are divisible by 5 and none of the digit is repeated? What is 3.50 hours work? What do you call data if organized with several values together? What is the least common denominator for 10 4 and 2? Positive integer less than 12? What is twenty nine plus seventeen? How many Lazarus are in the Bible? How many cm in total is 1 meter? How many square km in an acre? What is the angles of an isosceles triangle with an exterior angle of 124? How do you calculate a proportion? What is 199 in Roman Numerals? How do you change a number to a fractiondecimal and a percent? How many solutions are in coinciding? What has the length of 1 km? What are the two numbers whose GCF is 4 and the LCM is 48 what is the number?