How many years how many years has it been since 1986 till now?

What is mm in diameter? How many are in a sixteenth rest? How many squer feet is one jereb? What is 3.27 times 10 to the power minus 3? What is this numerical equation 140000000? Why does the instructions for a Dr Scholl's massage cushion recommend to that you use it for no more than 20 minutes? Does the 4x or the 10x objective have a shorter deph of field? What is similar to a hazelnut? What is 15 over 5 multiplied by 7? What is the volume of a cylinder whose curved surface has an area of 377 square cm and a height of 15 cm? What is the percent increase 15 to 100? A boat goes upstream 30 miles and downstream 44 miles in 10 hours It also goes upstream 40 miles and downstream 55 miles in 13 hours Find the rates of the stream and of the boat? Shape with 0 equal sides but 4 right angles? How many pairs of parallel sides does a regular square have? What is the first number in a visa credit card? 3 times the larger of two numbers is equal to 4 times the smaller The sum of the numbers is 21. find the numbers? What is the 90th percentile? What is the midpoint between -9 and 15? Which gesture do you quickly touch and release one finger two times? What are the 5 secondary colors?