How many kinds are one?
46976
"This kind of things" vs "These kinds of thing"
16190
"What kind of a person" vs. "what kind of person"
96195
Can we have multiple  in same ?
99827
For what values will f(x) be necessarily one-one?
11854
"There Is"/"There are" depends on plurality of the first list element or not?
85485
Is there a word for one side in a pair?
27290
What Does it Really Mean to Have Different Kinds of Infinities?
5313
Existence of how many sets is asserted by the axiom of choice in this case?
124189
"A few" vs. "few"
32422
What is the probability that there is at least one head and at least one tail?
71098
number of table with $1$ and $-1$
25213
Analysing the "kind(s) of problem(s) are [ones]/[to be]" construction
13672
Classification - There is/are
49673
How many organisms have ever lived on Earth?
31471
Types of things vs. types of thing
88433
Listing differnet kinds of an uncoutable noun. Are they countable or uncountable?
95550
Only one electron?