Probably over a litre, mostly in various beverages and milk (on cereals).

I do drink some water "neat", straight from the tap, and it is a darn sight cheaper than the pseudo-fashionable tap-water sold in bottles with fancy labels!

At least a liter (0.26US gallons) and tap (faucet) water is perfectly fine to drink in the UK. It's also a darn sight cheaper than the stuff in plastic bottles shipped around the country and across Europe.

Not so much.
Now that reminds me....

More than 10 times but I sweat easily

We have well water.. i mostly drink tea and coffee

Tap water and by the gallon

One US gallon.

Everyday.