Average number of stickers to complete an album
7000
Expected time to roll all 1 through 6 on a die
104770
How Many Tabs are Too Many?
49455
Total number of items defined in an enum
11460
Expected count of correct assignments
132143
organize 5 subjects in 6 periods
52348
Counting the number of surjections.
120046
How many flags does a user have per day?
117162
How many ways can the 10 A's be distributed?
99754
Number of accepted answers
4301
How many different arrangements?
133984
How big is my single pattern in Photoshop
44214
The number of subsets of a set of cardinality $n$
107964
Simple combinatorics problem.
17868
How to calculate the number of possible connected simple graphs with $n$ labelled vertices
35339
Calculation of Score when earning a specific tag badge
21635
How can I tell how long (more or less) it will take me to complete a game?
153242
Adding a note to a favourite