What happened when the wheel was invented?
You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely? DONALD +GERALD =ROBERT
10+10 and 11+11 can give you the same answer. Explain how?
A pond had 60 fish, out of which, all but 20 died. How many fishes are now present in that pond?
Using Only Five 5's and any mathematical operator make sum as 37
Distances from you to certain cities are written below. BERLIN 200 miles PARIS 300 miles ROME 400 milesAMSTERDAM 300 miles CARDIFF ??? miles How far should it be to Cardiff ?
Can you calculate the probability of getting a sum of six when a dice is thrown twice?
What goes through cities and fields, but never moves?
Look at the below sequence of letters and tell us what the next letter should be: O T T F F S S ?
If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?
Find three numbers such that * When we multiply three numbers, we will get the prime numbers. * The difference between the second and the first number is equal to the third and second.
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
