I do not know how to distinguish between waking life and a dream. Are we not always living the life that we imagine we are? ~ Henry David Thoreau

Kohli Science 

My Logic Puzzles


Please don't e-mail me asking for the answer key.  You can send me your results to see if you are correct, and (assuming I know what I've done with the key), I'll let you know.  I hope to add some Level 1 difficulty in the future. 

Difficulty Level 2*:

Difficulty Level 3*:

Difficulty Level 4*:

Difficulty Level 5*:

*A note about difficulty levels - Since I wrote these puzzles myself, I might not be the best judge of how difficult they are or are not.  If you think I've got them ranked incorrectly, please let me know, and I will update them.

All images copyright Kristen Kohli