If 21x = 79x, what is the value of x?
Can you write down eight eights so that they add up to one thousand?
You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth. How long would it take for the machine to cut the roll if each cut took 4 secs?
Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?
A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?
I am an odd number. Take away a letter and I become even. What number am I?
The square root of number 121 is "11". What is the square root of the number "12345678987654321."?
Find the value of "?" in the ball picture Riddle below:
What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?
Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?
Replace the question mark with the correct number in below Picture:
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
