You can definitely plant them in soil. Just plant the bulb in dirt, with only the sprout above soil. Keep the soil moist for the first week or so, and...
They could not be fresh. They should be picked the day you're giving them to someone. Keep them in fresh water in a cool area to help them live longer.
Taking a screen can be done on every smart phone but all have different buttons. In Samsung, you have to press the power button and home screen both at once.