Numbers

The following puzzles are in increasing order of difficulty. There is a numerical answer to each one. The password component from these visual puzzles is the sum of solutions to each one.

Meet the turtles at Caltech pond!

What is the question mark?

How many squares are there?

What is the question mark? Round your answer to the nearest whole number. You are not allowed to use Wolfram Alpha, MATLAB, etc…

Honor Code!!!!

Move one match to make this equation true. The answer from this puzzle is the largest number out of the three final ones in the equation. Note: You cannot use a ≠ sign .