What is the Surname of Barbie Doll?
Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?
Find the next number in the sequence 1, 2, 6, 21, 88, __?
why number 8549176320 is one of a kind?
What numbers should go on the bottom line? 3 6 9 15 8 2 10 12 11 8 19 27 19 10 29 39 ? ? ? ?
Can you find the odd number in the following five choices? 1) 482636 2) 259807 3) 865195 4) 104739 5) 391744
Solve the below puzzle by replacing the question mark with the correct number. 3 6 12 4 8 16 5 10 ?
John enters a small room. The Door Closes. When the door opens, John is in a larger room. Explain?
Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?
What have one eye but still cannot see?
There are two words one resembles the "state of rest" and the other is related to "writing/reading material". Can you name these two words which also sound similar?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
