Need to have three in-browser, mini-games programmed into a website.

Need to have three in-browser, mini-games programmed into a website. First Portion: The first mini-game is essentially a collision simulator. You're given anywhere between 4-9 numbers that enter the screen at the same time, all the numbers can travel in a random straight direction and at a random speed. The user's goal is to type the number that is about collide with another number. If a collision is missed, the user loses points. At the same time, at the bottom of the screen, the mini-game will ask the user multiple choice math problems. At the end, this mini-game is scored based on how many collisions were prevented and how many math problems were properly answered. Second Portion: Second mini-game that I need programmed is where a random number (1-9) will be presented on the screen for no longer than three seconds to the user. Immediately following the presentation of the first number, a second number appears and asks the user for the difference between the two numbers. Immediately following the user's answer, another, third number is presented and the user needs to calculate the difference between the second and third number. This will go on for several dozen levels. For example: A 4 appears, then an 8 appears, user inputs 4 as the correct difference between the two numbers. Then a 5 appears, user calculates difference between the second number (8) and the third number (5) and so on and so forth. The faster the user inputs the answer, the faster a following question will appear The program will calculate the person's score by measuring the accuracy in which the questions are answered and the speed in which they are answered. Final Portion: The final mini-game is best described by giving an example User begins the exam and is given a value, for example: A= 3 this stays on the screen for two seconds Immediately following that, another screen appears that has another value: B=7 Immediately following that, another screen appears that has another value: C=4 The screen will then go black for 3 seconds and ask the user what C, B or A is equal to. Each "level" will have three different values, for example, A, B and C and the values will always be between 1-10. The program will calculate the person's score by measuring the accuracy in which the questions are answered .