Find the combined weight of the Cat, Dog and Rabbit in the given picture.
There is a square of a particular number which when doubled, becomes 7 more than its quarter. Can you find the number?
Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.
Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator. Do you ?
Replace the question mark with the correct number in below Picture:
There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?
Find three whole, positive numbers that have the same answer when multiplied together as when added together.
John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?
Krish is 45 years old and his mother Crishtina is 73 years old. Can you find out how many years ago, his mother was three times his age?
There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units. Can you calculate the dimensions of this box with the given data?
Can you find the missing number in the third row? 35 20 14 27 12 18 5 2 ?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.