If you count 11 as 2 instances, the digit 1 appears 18 times if you don't count 10, 19 times if you do.
10,11,12,13,14,15,16,17,18,19,21,31,41,51,61,71,81,91
20
Infinite number of times;angels appear.
once
24
a lot At least 34 times.
5 times
20
20
20
5 times, simple maths
Infinite number of times;angels appear.
4000 times.
once
24
16 times i think
a lot At least 34 times.
Sixteen