A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child. Where's the father?
You knock a Table over in the library, and suddenly 20 eyes are looking at you.
What does the below mathematical rebus mean?
Can you find the key in the picture below?
One is to three as three is to five and five is to four and four is the magic number. What is the pattern?
There is something which is always coming but never arrives?
In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set? (2 + 6), (21 + 6), (58 + 6), (119 + 6), ___
Find three whole, positive numbers that have the same answer when multiplied together as when added together.
Can you find out the total number of triangles in the given figure?
Solve the mathematical equation in the picture below.
Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.