
Clue 1
Have you figured out who this is?
Clue 2
Try using a reverse image search to figure it out...
Solution
This is Dimitri Mendeleev, the creator of the periodic table of elements.

Clue 1
Looks like a diagram of an atom...
Clue 2
The number of electrons should help.
Solution
There are 79 electrons, which means this is Au, also known as 'Gold.'

Clue 1
Have you noticed the smudges in the background of the card?
Clue 2
Which elements are marked?
Solution
The marked elements are He, N, S, and At. Rearranged, those elements form 'Athens,' the location of this crime.

Clue 1
Looks like a diagram of an atom...
Clue 2
The number of electrons should help.
Solution
There are 79 electrons, which means this is Au, also known as 'Gold.'

Clue 1
Looks like a diagram of an atom...
Clue 2
The number of electrons should help.
Solution
There are 79 electrons, which means this is Au, also known as 'Gold.'

Clue 1
Have you noticed the smudges in the background of the card?
Clue 2
Which elements are marked?
Solution
The marked elements are He, N, S, and At. Rearranged, those elements form 'Athens,' the location of this crime.