If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?
How far can you walk into the woods?
Which Number is the odd one out? A) 7145 B) 2716 C) 5321 D) 4135
In the picture given below, can you find out which digit will take place of the question mark?
Find the missing number in the image below.
On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday. Is this even possible? How can it be?
What word is identified by the below rebus? Your Your Your Your Your Your Your Your Your Your
Can you convert the number zero(0) into a positive number using just one mathematical operator ?
What am I?
Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.
You can see it everyday, But cannot touch it at will. What is it?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki