NOTE: This discussion is posted to provide a little help to some, but not all English learners.
"advice" is an uncountable noun
"advice" has no plural form
"advice" is never pluralized
"advice", just like other uncountable nouns, is seen as a whole or mass
"advice" is a single thing
"advice" is never spelled/spelt "advices"
"advice" never takes the letter "s" at the end of the word
"advice" does not have a plural form
"advice" is never used with a/an
"advice" never uses a number, e.g., 2 advice, 10 advice, 1,000,000 advice.
"advice" is never plural
Uncountable nouns can be used with certain determiners, e.g.
my advice, NOT my advices
her advice, NOT her advices
some advice, NOT some advices
any advice, NOT any advices
no advice, NOT no advices
the advice, NOT the advices
this advice, NOT this advices
that advice, NOT that advices
Uncountable nouns can be used with certain expressions of quantity (quantifiers), e.g.,
a lot of advice, NOT a lot of advices
lots of advice, NOT lots of advices
little advice, NOT litttle advices
a little advice, NOT a litttle advices
a ton of advice, NOT a ton of advices/NOT tons of advices
a large amount of advice, NOT a large amount of advices/NOT large amounts of advices
much advice, NOT much advices
more advice, NOT more advices
most advice, NOT most advices
some advice, NOT some advices
any advice, NOT any advices
a ton of advice, NOT a ton of advices/NOT tons of advices
The uncountable noun "advice" does not have a plural form
"advices" is not a word
The word "advice" is never written or spoken as "advices"
The word "advice" is never spelled/spelt as "advices"
There is no plural form of "advice"
So what have we learned from this little bit of advice? J
First, any English learners should ignore this post and pay attention to what Richard said.
However, in the past, more than 150 years ago, "advice" was sometimes used in the plural form.
"[they] quietly read the prices-current along with the latest advices from Mexico, after dinner, and, it may be, fall asleep over them both."--Henry David Thoreau, "On the Duty of Civil Disobedience"
"These seemed to me womanish advices, which I should blush to obey."--The Confessions of Saint Augustine, translated by E. B. Pusey.
"Certainly, the Gentleman’s Objection against the Persecution that Pamela suffers from lady Davers, in respect to the Relation this Madwoman bears to the Brother, is the rashest of All his Advices!"--Samuel Richardson, Pamela.
"Christian Advices: Issued by the Yearly Meeting of Friends."--1859 book title.
"“Pray, Sir Philip, what route do you take when you reach the Continent?" “I go from Leith to Helvoet by a packet with advices.”--Sir Walter Scott, My Aunt Margaret's Mirror.
As for "evidence," an important book in the history of Christian theology in England was entitled Natural Theology or Evidences of the Existence and Attributes of the Deity, by William Paley, often referred to as "Paley's Evidences."