There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains same digits only.
Can you find that number ?
142857
142857 * 1 = 142857
142857 * 2 = 285714
142857 * 3 = 428571
142857 * 4 = 571428
142857 * 5 = 714285
142857 * 6 = 857142
These number are considered as cyclic numbers.
This is a classy optical illusion puzzle.What more you can find except bricks in the image below?
A cigar stuck in the wall
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?
Except 2 and 3, all the prime numbers are in a form of (6k +1) or (6k -1)
Therefore, you can use the formula to write down the prime numbers as:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 61, 67, 71, 73
Now, you can separate numbers as per the requirement that are:
3, 11, 13, 23, 31, 41, 43, 53, 61, 71 and 73
You need to cut a round cake into eight equal pieces with just 3 cut. Can you do it?
Step 1 : You need to cut the cake from the middle point across the diameter.
Step 2 : Then you need to cut the cake horizontally and you will have 4equal pieces.
Step 3 : Then you need to cut the cake horizontally and you will have 8 equal pieces.
Before Balboa discovered the Pacific ocean, which was the largest ocean before that ?
Whether discovered or not Pacific is always the biggest ocean :-)
Replace the alphabet with the number such that below equation hold true.
HAPPY
+ DIWALI
--------------
HDLALA
--------------
35997
+ 284508
-------------
320505
-------------
Where do you go to learn how to make the ice cream ?
In a sundae school
Can you replace the question mark with the correct number, given the pair of numbers exhibits similar relationship?
? : 3839 :: 11 : 1209
16
Formular used :
pow(x,3) - pow(x,2) - 1
11*11*11 - 11*11 - 1
1331 - 121 - 1
1209
Similarly, we can solve
pow($x,3) - pow($x,2) - 1 = 3839
This condition holds true for number-16.
In a football game , Chelsea defeated Mani 2 - 0 but no man from either side scored. How can this be possible ?
It was a Chelsea ladies team vs Manu ladies team.