Which city is three-fifths chick two third cat and 50% goat?
Can you make four (4) nines (9) equal 100?
I am white when I am dirty, and black when I am clean. What am I?
If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?
If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?
Identify The phrase in the picture.
Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true. * * x * ===== * * *
Something Extraordinary happened on May 6th 19778 at 12:34am what was that?
The centre of the third figure is empty. What digit should fit inside?
What is the centre of gravity?
I don't get anymore wetter, no matter how much rain falls on me.
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.