Question 1

Clue 1

Answer

Have you identified all six individuals pictured?

Question 2

Clue 2

Answer

Searching their last names should make it easy.

Question 3

Solution

Answer

The first letter of each first names spells out DALLAS.

Question 4

Clue 3

Answer

They are, in order: Daniel Solander, Alfred Nobel, Lise Meitner, Liev Kreyberg, Anders Celcius, Svante Arrhenius.

Question 5

Clue 1

Answer

Have you solved any other of the stamps yet?

Question 6

Clue 2

Answer

This will be solved in much the same way.

Question 7

Solution

Answer

In Norwegian, the words for 'bread' and 'page' are 'brod' and 'side' which combine into "Broadside."

Question 8

Clue 3

Answer

Much like the second card, you'll need to think outside of English...

Question 9

Clue 1

Answer

Does anything look familiar about these numbers?

Question 10

Clue 2

Answer

To be fair, this puzzle is a much higher degree of difficulty than some others...

Question 11

Solution

Answer

All the numbers are degrees in Farenheight. When converted into Celcius, they yield single digit numbers from 1-26, forming a simple alphabet. The resulting plaintext reads: "Their chief of European operations is known as Leviathan."

Question 12

Clue 3

Answer

Anders, from the front of the card, may be able to help.

Question 13

Clue 4

Answer

You may need to adjust your temperature.

Question 14

Clue 1

Answer

Have you solved any other of the stamps yet?

Question 15

Clue 2

Answer

This will be solved in much the same way.

Question 16

Solution

Answer

In Norwegian, the words for 'bread' and 'page' are 'brod' and 'side' which combine into "Broadside."

Question 17

Clue 3

Answer

Much like the second card, you'll need to think outside of English...