3 - tobacco (heh it's true, but I don't smoke cigarettes and don't want to)
7 - alcohol
15 - cannabis, nutmeg
16 - amphetamine, cocaine, codeine, DXM, butyrate, barbiturates, myorelaxants, tranquillizers, XTZ, salvia, calea, coleus, kratom, kanna and other entheogens...
17 - LSD, DON, DOB...