Problem: How to stay up all night on a school night
Drink caffeine.
Bring a coffeemaker into your room, if you have one. The coffee will help you stay awake and bringing it in your room will decrease noise level.

Answer: You may also drink tea, soda, energy drinks, or any other caffeinated beverage. Bear in mind that coffee won't keep you awake forever.

Problem: How to zip a file on a mac
Open finder.
You can open finder by clicking the finder icon on the dock. It looks like a square blue face.

Answer: Once the finder opens, navigate to the files that you want to compress. To easily compress multiple files from various locations into one.

Problem: How to substitute for mustard seed
Use prepared horseradish to add spice.
Prepared horseradish is made by combining ground horseradish with vinegar, and sometimes other spices, to form a sauce. You can get it from your local supermarket.
Answer: In place of mustard seed, use the same amount of prepared horseradish to add spice and complexity to your recipe. Add mayonnaise to achieve the same consistency.