I use it every day: 4% – Keys 4% – Reads 4% – Computer 5% – Soap 8% – Toilet 11% – Car 12% – Cutlery 20% – Toothbrush 26% – Telephone Other questions that need an answer at this level: Percussion instruments: 2% – Xylophone 4% – Cymbal 6% – Triangle 21% – Djembe