Solving puzzles is a great way to improve your game. You have to look for ideas, and play in an exact way. In a puzzle, there will usually be only one way to solve it, so you have to be accurate. Mate in 2 puzzles are one of the best learning tools, as they need us to find the right idea, but also make sure our opponent can't do anything, and looking out for your opponent's moves and ideas is something you should be doing in your games anyway!
The first thing to look for are checks, and if they don't work, then you need to look at moves which threaten an unstoppable Checkmate. Some patterns are easy and might already be known, but there are some patterns that are not easy, or that haven't been seen before. These are harder to solve, but better for you!
Here are some mate in 2 puzzles. They start pretty easy, but get harder! I'll give you a hint: look for checks first!