How many years is between 1987 and 2012?

All twin primes between 1 and 100? Which two positive consecutive integers have a product of 506? What is the space between two sets of doors at the entrance of a building called? Does or mean to add or mulitply? What does brainery mean? What is 948 times 4? What are the square numbers between 80 and 150? How do you find the percent of 400 which is 314.2? How many miles in 33000 feet? Which number stands out what 4 numbers 990 991 993 994? What is current yield? How many faces and vertices and edges does a tryanglar base prymid has? Was love the most mentioned word in the Bible? What is a t chart used for algebra 1 called? What is 7.515 rounded to the nearest hundredth? What is the meaning of the word likelihood? What size 4T means? What is greater 0.6 or 0.52? What magical creature can be in two places at once? How many meters can a moose run in a second?