PIVOT/UNPIVOT

Hello Anonymous 

check out this code. Uses Table.Group to group data by question number. The function applied combines text from column2 and column1

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMrdQ0lEKLE0tLsnMz1OK1YlWKkmtKFFIBIqCeSEgXhIKLxnGM7dE0qsA5MGVOKJowMaLBQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t, Column2 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}, {"Column2", type text}}),
    #"Replaced Value" = Table.ReplaceValue(#"Changed Type","",null,Replacer.ReplaceValue,{"Column1", "Column2"}),
    GroupNumbers = Table.Group
    (
        #"Replaced Value",
        {"Column1"},
        {
            {
                "AllRows",
                each Text.Combine(_[Column2], " ") & " - " & Text.Combine(List.Skip(_[Column1],1)," ")
            }
        },
        GroupKind.Local,
        (group,current)=> try if Value.Is(Number.From(current[Column1]),type number) then 1 else 0 otherwise 0
    )
in
    GroupNumbers

Copy paste this code to the advanced editor in a new blank query to see how the solution works.

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Kudoes are nice too

Have fun

Jimmy