Before we were privileged with so many inventions that made our lives super easy, people had to use a variety of methods to do things. For example, ancient Egyptians used tall obelisks so they could tell time. Depending on how and where the shadows would fall, they could tell approximately what time it was. Now, luckily, we have clocks that tell us the time, but it wouldn’t be bad to know a few finger tricks to assist us in our everyday lives.

Bright Side collected 7 easy tricks that only require the use of your fingers in order to perform.

1. Use your fingers to predict the sunset.

The first thing you should know is that every finger accounts for 15 minutes of remaining sun time. So, hold your hand between the sun and the horizon and count how many fingers separate them. If, for example, there are 4 fingers in between, then you are 1 hour away from sunset. Keep in mind that the closer you are to the poles, the more sunlight time you get since you are closer to the sun.

2. Count from 1 to 1,023 using only 2 hands.

Which one of the tricks mentioned above will you try out first? Will it be the more complex rock, paper, scissors game or will you try predicting the sunset using your fingers?