standard drink is any drink that contains about 14 grams of pure alcohol
FOR DIFFERENT ALCOHOL FORMULATIONS A STANDARD DRINK WOULD MEAN
BEER ( 5% Alcohol)- 12 OZ = 360ML
WINE ( 12% Alcohol)- 150ml
WHISKY ( 40% Alcohol)- 45ml

Bidis - originated in India and south east Asia . They have less tobacco but deliver 4-5 times more nicotine along with tar and carbon monoxide . So bidis are no safer than cigarettes and as they are unfiltered also they are indeed more harmful
Hookah- Here the tobacco mixture is heated using charcoal. They are no safer than cigarettes , rather they might be more harmful as they have more tar, carbonmonoxide , nicotine and heavy metals than cigarettes . The charcoal also produces more carbonmonoxide and toxins
Cigars – one cigar would have as much tobacco as an entire pack of cigarettes .Little cigars look like cigarettes and come in a pack of 20 and are smoked like cigarettes True cigars have as much of tobacco as an entire pack of cigarettes .Cigrattes have 8 mg of nicotine. Cigars have approx 100-200 mg of nicotine
Menthol cigarettes – have menthol in them so smokers inhale them more deeper and thus deliver more nicotine .
Light cigarettes –In US the word light or mild is banned on cigarettes and they have have the same health risk as compared to cigarettes

Hand rolled cigarettes are no safer