The answer to 15 is evens. If you take the even letters in tUmBlE and take Ceci(l) without the L you have CECIUBE from which you can make up ice cube.
Hope this makes sense.
cecil nearly (upset) = ceci
15 = evens. even letters of tUmBlEr = ube
upset ceci+ube =ice cube
you would find an ice cube in a tumbler along with whiskey
(including this) whiskey AND ice