Using Only Five 5's and any mathematical operator make sum as 37
Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT. Hint: The grid reads the same across as down.
Complete the following series. It.s very logical: 1, 4, 5, 6, 7, 9, 11, __?
There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?
You see me once in June, twice in November, and not at all in May. What am I?
Only one colour, but not one size, Stuck at the bottom, yet easily flies. Present in sun, but not in rain, Doing no harm, and feeling no pain. What is it?
Prove that twice of ten is the same as twice of eleven.
Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?
You can hear me, but you can't touch or see me. What am I?
Where do you go to learn how to make ice cream?
What number comes next in the series? 5 15 5 18 5 24 14 20 _
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
