Table:
0
A
B
C
D
E
F
G
H
1
Manufacturer
Model
Intro Date
Interface
OS
Price (USD)
Price
Throughput
2
Simtec Electronics
Entropy Key
2009
USB
Windows/Linux/BSD
60
£36
32 kbit/s
3
ID Quantique SA
Quantis-USB
2006
USB
Windows/Linux
1310
990€
4 Mbit/s
4
ID Quantique SA
Quantis-PCI-4
2006
PCI
Windows/Linux
2952
2,230€
16 Mbit/s
5
Comscire
PQ4000KU
2013
USB
Linux/Windows/Mac
895
686€
4 Mbit/s
6
Comscire
PQ32MU
2013
USB
Linux/Windows/Mac
1495
1,139€
32 Mbit/s
7
LETech
GRANG
2008-2012
PCI/USB3/SATA
Linux/Windows
6800
5,500€
400 Mbit/s
8
TRNG98
TRNG9803
2009
SERIAL
Linux/Windows/Solaris/BSD
230
179€
72 kbit/s

Questions and formulas:
Question: What is the intro date for the interface that equals pci?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,D1="PCI"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H8,D2:D8="PCI"),3))
Level: medium
Question: What is the intro date for the throughput of 16 mbit/s?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,H1="16 Mbit/s"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H8,H2:H8="16 Mbit/s"),3))
Level: medium
Question: How many intro dates have the price of 686€?
Formula: ROWS(UNIQUE(FILTER(C1, G1="686€")))
Formula2: ROWS(UNIQUE(FILTER(C2:C8, G2:G8="686€")))
Level: medium
Question: What is the price for the manufacturer LETech?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,A1="LETech"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H8,A2:A8="LETech"),7))
Level: medium
Question: What is the price (usd) for the model pq32mu?
Formula: SUMIFS(F1,B1,"PQ32MU")
Formula2: SUMIFS(F2:F8,B2:B8,"PQ32MU")
Level: easy
Question: Who is the manufacturer whose intro date is 2006 and their throughput is 4 mbit/s?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(C1=2006)*(H1="4 Mbit/s")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H8,(C2:C8=2006)*(H2:H8="4 Mbit/s")),1))
Level: medium