Dapper map to multiple Dictionaries

public class MasterDataModel
{
    public IEnumerable<KeyValuePair<int, string>>? Titles { get; set; }
    public IEnumerable<KeyValuePair<int, string>>? Genders { get; set; }
    public IEnumerable<KeyValuePair<int, string>>? Countries { get; set; }
}

var titles = await Task.FromResult(ExecuteQuery(q => q.Query<dynamic>("SELECT * FROM Mst.Title"))
    .ToDictionary(r => (int)r.TitleID, r => (string)r.TitleValue));

return new MasterDataModel() { Titles = titles };