20. Which way?
Ianiv & Arieanna's
http://farm1.static.flickr.com/10/11864415_2c43c2b1ad_b.jpg
Establishing Shot: The 405
Atwater Village Newbie's
http://farm2.static.flickr.com/1262/842866223_8490f33410_b.jpg
Traffic Light Tree
Squirmelia
http://farm4.static.flickr.com/3287/2451382877_3b14b15487_b.jpg
1980ish - Marcia, Clint, Emily - 0017
ClintJCL
http://farm4.static.flickr.com/3292/2797163429_84cbddf44d_b.jpg
ambiguity
eleстяошаve™
http://farm4.static.flickr.com/3149/2858557682_d4a59ea66c_o.jpg
optical illusion - pulsing vortex
ClintJCL
http://farm1.static.flickr.com/106/274762242_aa232fa71b_o.jpg
question mark ?
Leo Reynolds
http://farm1.static.flickr.com/7/12364944_14794d1055_b.jpg
The Stroop effect
shimmertje
http://farm1.static.flickr.com/59/221189408_12a4b78437_b.jpg

21. puzzled
eworm
http://farm1.static.flickr.com/66/177950064_65ee6289da_o.jpg
The Never Ending Math Problem
d3 Dan's
http://farm4.static.flickr.com/3232/2967752733_b8e2d77f71_b.jpg
Oh What to do?
http://kunaljanu.files.wordpress.com/2009/02/confusion.jpg
access your homework assignments ...
http://www.4g-homework.com/graphics/questioning-terrier.jpg
flickr mon amr - what have you done to me...
derfotobulle
http://farm2.static.flickr.com/1427/548423356_520bab6acb_b.jpg
Oxymoron
Vidiot
http://farm1.static.flickr.com/121/305255428_aee77b58a1_o.jpg
Confusing
eflon
http://farm4.static.flickr.com/3082/3132227512_234457a067_b.jpg