This is the middlemost point in a data set. It divides a data set in half by separating the lowest 50% of the values from the highest 50%. It is one of the measures of "central tendency" in a data set.

exaclty 30 degrees celcius is the answer

it's actually a very difficult task, due to not many people can make 2 million dollars in 2 years. besides that, to the not-so-realistic ideas, you can create a business. it could be practically anything, but make it into a business that isn't that known yet, you get me? also, lets not forget about stock market. that's where all the good stuff happens. use investments at the beginning and begin to raise up your business or whatever you're going to do. as this is a very non-realistic idea, it's still worth the shot!