Table:
0
A
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E
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1
Year
Theme
Artist
Composition
Mintage
Issue Price
2
2000
Year of the Dragon
Harvey Chan
75% gold, 25% silver
8,874
$388.88
3
2001
Year of the Snake
Harvey Chan
75% gold, 25% silver
6,571
$388.88
4
2002
Year of the Horse
Harvey Chan
75% gold, 25% silver
6,843
$388.88
5
2003
Year of the Goat
Harvey Chan
75% gold, 25% silver
3,927
$398.88
6
2004
Year of the Monkey
Harvey Chan
75% gold, 25% silver
3,318
$398.88
7
2005
Year of the Rooster
Harvey Chan
75% gold, 25% silver
4,888
$398.88
8
2006
Year of the Dog
Harvey Chan
75% gold, 25% silver
4,888
$448.88
9
2007
Year of the Pig
Harvey Chan
75% gold, 25% silver
4,888
$498.95
10
2008
Year of the Rat
Harvey Chan
75% gold, 25% silver
4,888
$508.95
11
2009
Year of the Ox
Harvey Chan
75% gold, 25% silver
4,888
$638.88
12
2010
Year of the Tiger
Harvey Chan
75% gold, 25% silver
4,888
$555.55
13
2011
Year of the Rabbit
Harvey Chan
75% gold, 25% silver
4,888
$638.88

Questions and formulas:
Question: What was the theme when the issue price was $508.95?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="$508.95"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F13,F2:F13="$508.95"),2))
Level: medium
Question: What's the mintage when the theme was year of the rabbit?
Formula: SUMIFS(E1,B1,"year of the rabbit")
Formula2: SUMIFS(E2:E13,B2:B13,"year of the rabbit")
Level: easy
Question: What year was the year of the pig theme?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="year of the pig"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F13,B2:B13="year of the pig"),1))
Level: medium
Question: Who was the artist for the year of the snake?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="year of the snake"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F13,B2:B13="year of the snake"),3))
Level: medium