A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log. Can you calculate the weight of the entire wooden log?
People put me on the table and cut me but do not eat me. What am I?
If, 6 / 7 = 2 3 / 9 = 7 8 / 2 = 6 Then 4 / 5 = ?
Look at the below sequence of letters and tell us what the next letter should be: O T T F F S S ?
Complete the series by replacing "?" with the correct number. ST ND RD TH '?'
Until it is measured, not known. Yet how you miss it when it has gone. What is it?
What has many keys but can’t open a single lock?
Begin with a word, five letters to my name, Remove the first and last but I am the same Take out my middle and still, I remain. What word am I?
Identify the 10 differences between the two given pictures.
There are forty elephants and they have forty-fore heads. How can this be possible?
You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
