Table:
0
A
B
C
D
E
F
1
catalog id
catalog name
catalog publisher
date of publication
date of latest revision
catalogs
2
1
Chocolate
Koepp-Rutherford handmade chocolate store
2013-03-15 05:09:17
2017-09-26 12:10:36
3
2
Coffee Bean
Murray Coffee shop
2012-04-13 06:37:09
2017-10-26 01:16:51
4
3
Lemonade
Russel-Gislason Lemon shop
2012-11-27 19:29:22
2017-12-04 06:48:13
5
4
Breakfast Tea
Grady & Kautzer
2011-07-22 04:57:19
2017-03-30 09:15:37
6
5
Coco powder
Lidl
2013-03-15 05:09:17
2017-09-26 12:10:36
7
6
Latte
Murray Coffee shop
2012-04-13 06:37:09
2017-10-26 01:16:51
8
7
Sparkling Water
Russel-Gislason Lemon shop
2012-11-27 19:29:22
2017-12-04 06:48:13
9
8
Jam
Grady & Kautzer
2011-07-22 04:57:19
2017-03-30 09:15:37

Questions and formulas:
Question: Which catalog publisher has published the most catalogs?
Formula: TAKE(SORT(SUMMARIZE(C1,DCOUNTX(F1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(C2:C9,DCOUNTX(F2:F9)), 2, -1), 1)
Level: hard
Question: Find the catalog publisher that has the most catalogs.
Formula: TAKE(SORT(SUMMARIZE(C1,DCOUNTX(F1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(C2:C9,DCOUNTX(F2:F9)), 2, -1), 1)
Level: hard
Question: catalog publishers with the most catalogs 
Formula: TAKE(SORT(SUMMARIZE(C1,DCOUNTX(F1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(C2:C9,DCOUNTX(F2:F9)), 2, -1), 1)
Level: hard
Question: Publisher with the largest number of catalogs
Formula: TAKE(SORT(SUMMARIZE(C1,DCOUNTX(F1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(C2:C9,DCOUNTX(F2:F9)), 2, -1), 1)
Level: hard
Question: The publisher who have published most catalogs.
Formula: TAKE(SORT(SUMMARIZE(C1,DCOUNTX(F1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(C2:C9,DCOUNTX(F2:F9)), 2, -1), 1)
Level: hard
Question: The publisher having most catalogs published.
Formula: TAKE(SORT(SUMMARIZE(C1,DCOUNTX(F1)), 2, -1), 1)
Formula2: TAKE(SORT(SUMMARIZE(C2:C9,DCOUNTX(F2:F9)), 2, -1), 1)
Level: hard