Whiskey is mainly a mixture of ethanol (40 %) and water.
40%
Any 25ml measure of alcohol at 40% abv contains 1 unit of alcohol according to the UK. 1 US oz = approx 29.5ml
There is no sugar or fat in whiskey.
The simple answer is yes. Gluten free can be bad for you if you don't have Celiac disease. Celiac disease is something approximately 1 out of every 133 people have, and it is a severe allergy to gluten. Celiac disease causes the bacteria in your intestines to attack your intestinal lining whenever you eat gluten. The only cure is to go completely gluten free for life. Stopping the consumption of gluten does eliminate the symptoms of Celiac disease and will help people with this condition to feel better. However, many people are jumping on the "no gluten" bandwagon even if they don't have Celiac disease. Celebrities who swear by it's weight-loss benefits are helping to fuel this popularity. Since gluten is found naturally in wheat but added to many processed products (including soy sauce and salad dressing) for it's flavor and binding properties, gluten can be hard to avoid. A diet free of gluten often lacks in fiber, vitamin B, and iron. In addition, manufactured 'gluten free' foods often have added sugar to help them taste better and added fat to hold them together, leading to more calories and ultimately less health benefits(for example, gluten free pretzels have 40 more calories and 6 times the fat of regular pretzels per serving). The best gluten free products are the ones without labels: fresh fruits and vegetables. The best thing to do is talk to your doctor about gluten. Only your doctor can tell you if you have Celiac disease and really need to go gluten free. If you aren't allergic to gluten, experts say that there's no reason for you to avoid it. Eat a wholesome balanced diet and the health benefits will be far greater than what gluten free could do for you.
0.4oz
Vodka is almost always 40% (80 Proof). High end Vodka can reach as high as 70%. Whiskey ranges, most often it is 40% (80 Proof) but in many of the high end brands it reaches 50% (100 Proof) and even 62% (124 Proof) as in Knob Creek.
Everything can be frozen, it's just a question of can you get it down to the temperature it needs to be frozen. A 80 proof whiskey freezes at -40 degrees.
40 oz of beer will get you pretty drunk. 40 oz of wine will get you drunk as a skunk. 40 oz of whiskey will probably kill you.
Close to $40
As of now, it is. Kraft is great about labeling. For example, if a product contains malt syrup, it will say right after that (from corn and barley) See this link for more details. http://www.kraftrecipes.com/healthy-living-ideas/articles/food-allergies/gluten-free-foods.aspx
Dewar's whiskey has a 40% alcohol/volume, it is 80 proof.