Question: To tell if your indoor plants need water
Option 0: Stick your finger in the soil, up to your first knuckle, to see if the soil is moist enough.  If your finger can't even enter the soil, it definitely needs to be watered. If the soil feels fairly dry and  sticks to your finger, it has enough water.
Option 1: Stick your finger in the soil, up to your first knuckle, to see if the soil is moist enough. If your finger can't even enter the soil, it definitely needs to be watered.  If the soil feels fairly moist and sticks to your finger, it has enough water.
Answer: 1