Self-revealing hints are available below. It is recommended looking at them one at a time, and only in case of frustration. Do not spoil the satisfaction of having the “aha-moment”!

You may prefer to request a personalized hint by email. In that case, please mention which puzzle you are working on, and what you have tried so far. If you’d like only a small nudge, you may try to ask only a few yes/no questions.

##### Puzzle 0: Password

## Hint 1 (click to display)

You may look up some *element*ary information online.

## Hint 2 (click to display)

Write the symbols corresponding to the chemical elements with the right atomic number.

##### Puzzle 1: Zooming in

## Hint 1 (click to display)

Find the missing term in each integer sequence. Most of them are easily recognizable, and if needed the OEIS can help!

## Hint 2 (click to display)

The numbers you got allow you to extract one letter in each of the names. You should obtain a webpage address.

## Hint 3 (click to display)

Follow the paths described around the grid. Join the center of the corresponding triangles to form 6 shapes. You should obtain a 6-letter thematic answer.

##### Puzzle 2: Disturbance

## Hint 1 (click to display)

Each line of dialogue is the definition of a word. The blue ones are mathematical terms. The response word is somehow related to the mathematical term, but there is some confusion going on.

## Hint 2 (click to display)

Each dialogue will give you a pair of anagrams.

## Hint 3 (click to display)

The diagrams represent the permutations associated to the anagrams. They are not in the same order as the dialogues. Extract the letters corresponding to the orange dots to form the orange word in the conclusion.