The number of x societies is or are?
35117
"The number of residents has grown" vs. "the number of residents have grown"
133272
Number of normal subgroups of a non abelian group of order $21$... CSIR December $2013$
127100
Countable or uncountable set 8 signs
933
How many groups exist with order $n$ (two isomorphic groups are treated as the same group)
122959
How is number of conjugacy class related to the order of a group?
30447
Not only X but also Y are (is?)
124224
How many groups of order $n$ with center {e} exist?
114642
There is/are for multiple subjects
13860
IMO/1981 - Combinatorics
133497
Group Membership Test for Permutations
11967
number of subsets of even and odd
44214
The number of subsets of a set of cardinality $n$
126720
Number of possible marriage arrangements if Marriage Condition is satisfied
99754
Number of accepted answers
24212
proving how many permutations exist.
40852
Number of ways of distributing $n$ identical objects among $r$ groups
71098
number of table with $1$ and $-1$