User page for:

GreatGray


Liked Puzzles

4 likes 3.5
(Fairly Easy)
A Guess-my-rule Problem in Mathematics
Guess the rule: 1254 is 13 4097 is 36 1111 is 2 2222 is 8 3478 is 53 1010 is 1 ...
Added about 1 month ago by GreatGray currently with 0 comments
50 likes 5.2
(Moderate)
The Hidden Tiger in Optical Illusions
This must be the toughest optical illusion I’ve ever come across, created by American w...
Added about 1 year ago by copter currently with 15 comments
22 likes 7.5
(Challenging)
Cards With Crosses in Logical
You have a stack of 23 cards. Each card has an image of a cross on one side, and an ima...
Added 10 months ago by jaX currently with 3 comments
18 likes 7.4
(Challenging)
The Number Problem in Logical
What does 3685=? 8809=6 7111=0 2172=0 6666=4 1111=0 3213=0 7662=2 8096=5 931...
Added 10 months ago by Tsion currently with 11 comments

Recent Comments

greatgray about 1 month ago

I solved that as soon as I finished reading it

(in How Come?)
greatgray about 1 month ago

My answer is not yes. :)

(in Parodoxical Statements from Life)
greatgray about 1 month ago

I would stand in the center of the blades(the little circle), and when they start, I would jump. When I land, I would jump again as soon as possible. I would repeat until it ends(if at all!). :)

(in Crazy Google Interview Question)
greatgray about 1 month ago

I thought that the answer was 3.(log-2 of 8)

(in The Classic Weights & Scale)