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Post under tag number puzzle
Recent puzzles under tag number puzzle
Recent
MCQs
Unanswered
Most votes
Most views
Most answers
+1
vote
Find the value of n where (225)base n = 149
posted
Oct 12
by
anonymous
algebra
number puzzle
+1
vote
In a sequence of eleven real numbers, only two are shown, product of any 3 successive boxes is 120. Find the sum of all?
posted
Oct 9
by
anonymous
number puzzle
logic
0
votes
Express 36 as the sum of two primes numbers?
posted
Oct 7
by
anonymous
number puzzle
+1
vote
Find the sum of all the prime numbers larger than 2 less than 10^12 that are 1 more than a perfect square.
posted
Oct 6
by
anonymous
number puzzle
mathematical
0
votes
How many numbers between 100 and 200 would be divisible by both 9 and 6?
posted
Oct 4
by
Shivdev Yadav
number puzzle
0
votes
What number should replace the question mark?
posted
Oct 3
by
Madhavi Latha
number puzzle
logic
mathematical
0
votes
What number is missing in this sequence? 2; 3; 6; 9; 18; 27; ?; 81
posted
Oct 2
by
Brijesh Talwar
number puzzle
logic
series
0
votes
Find the missing number is the following image?
posted
Sep 25
by
anonymous
logic
number puzzle
–1
vote
For n > 1 is there any number for which n! is a perfect square?
posted
Sep 21
by
anonymous
number puzzle
algebra
+1
vote
One number is 28 more than three times another number. Each number were multiplied by four.........What are the numbers?
posted
Sep 20
by
Balwinder
mathematical
number puzzle
+1
vote
Fill each o with + or - to make the following equation: 1 o 2 o 3 o 4 .... o 63 o 64 = 0
posted
Sep 18
by
anonymous
mathematical
logic
number puzzle
0
votes
How many ways can we arrange nos 1 to 9 in a 3x3 grid so that every number is greater than num above and num left of it.
posted
Sep 16
by
anonymous
number puzzle
logic
+1
vote
If every column, row every diagonal adds up to same number n and the middle number is 8 of a 3x3 grid then what is n?
posted
Sep 16
by
anonymous
number puzzle
logic
0
votes
Find the missing term : 14, 46, ?, 430, 1294, 3886.
posted
Sep 11
by
Ujjwal Mehra
series
number puzzle
0
votes
What number should replace the question mark in the grid?
posted
Sep 7
by
Saif Khanam
number puzzle
logic
0
votes
If you write all the numbers from 1 to 100 how many times will you have written the digit 1?
posted
Sep 4
by
anonymous
number puzzle
logic
0
votes
What is the sum of all distinct prime factors of 3^3 + 4^7 + 5^5 + 6^4 + 7^6
posted
Sep 3
by
anonymous
mathematical
number puzzle
+1
vote
What is the next number in the series - 9; 86; 856; 8556; ??
posted
Aug 30
by
Balwinder
series
number puzzle
logic
0
votes
Prime number 31 can be expressed in the form n^5 -1, with n=2. Are there other primes that can be expressed this way?
posted
Aug 28
by
anonymous
number puzzle
logic
+1
vote
The sum of each two adjacent blocks gives the number above. What number should replace the question mark?
posted
Aug 27
by
Sandeep Otari
number puzzle
logic
0
votes
There exists a number, 102400...002401, where the 0's occur 2014 times. Is this number prime or composite?
posted
Aug 25
by
anonymous
number puzzle
logic
0
votes
What is the seventh term of the following series: 4, 7, 12, 19, 28, ............
posted
Aug 20
by
Simranjeet Singh
number puzzle
series
mathematical
0
votes
Next three consecutive positive integers (after 1,2,3) where sum of individual cubes is equal to a perfect square?
posted
Aug 16
by
anonymous
number puzzle
mathematical
algebra
0
votes
Find the next number in the series ? 1; 10; 24; 43; 67; ?
posted
Aug 13
by
Kapil Kapoor
series
number puzzle
logic
0
votes
Find the next three terms of this sequence : 128; 61; Y; 64; 63; S; 32; 65; N; 16; 67; J; 8; 69; G
posted
Aug 13
by
Rajni
number puzzle
logic
series
0
votes
If 2+3=8, 3+7=27, 4+5=32, 5+8=60, 6+7=72 then 7+8=??
posted
Aug 10
by
Vikram Luthra
logic
mathematical
number puzzle
0
votes
What is the next number in the series: 3,240; 808; 200; 48; ?
posted
Aug 9
by
Varuna Magar
series
number puzzle
logic
0
votes
How many numbers are there between 100 and 300 which either begin with or end with 2?
posted
Aug 9
by
anonymous
number puzzle
logic
0
votes
If 4+5-2=33 and 10+12-5=119 then 6+8-3=?
posted
Aug 6
by
anonymous
number puzzle
logic
0
votes
All possible four-digit numbers, with distinct digits using digits {1, 3, 4, 5, 6}. How many of them are divisible by 2?
posted
Aug 3
by
anonymous
mathematical
permutation
number puzzle
0
votes
A little boy has exactly 210 pieces of candy. If he buys 10 more, he will have 220. He gives away 12. How many pieces...
posted
Aug 1
by
Hanifa Mammadov
logic
number puzzle
riddle
0
votes
Find the logic and find the missing number in the table below.
posted
Jul 26
by
Vikram Luthra
logic
number puzzle
0
votes
Number obtained by the sum of digits of 3^n where n>1, can we say this number is always divisible by 9 why or why not?
posted
Jul 21
by
anonymous
logic
number puzzle
+1
vote
Find the logic and then find the value of the missing number â€˜Xâ€™.
posted
Jul 19
by
Kuldeep Apte
logic
number puzzle
mathematical
+1
vote
How many numbers between 1 to 10^10 contain 1 in them?
posted
Jul 18
by
anonymous
number puzzle
logic
0
votes
If, 2 = 8; 3 = 18; 4 = 32; 5 = 50 Then, 10 = ?
posted
Jul 12
by
Anshika Utadi
logic
number puzzle
0
votes
Find the eighth term of the following series - 101; 102; 104; 107; 111;116; ............
posted
Jul 9
by
Ankur Athari
series
number puzzle
logic
+1
vote
Find the missing number in the sequecne- 8; 27; ?; 343; 1331
posted
Jul 7
by
Sandeep Bedi
number puzzle
series
logic
0
votes
If Girl is coded as 48, what will be the code for boys?
posted
Jul 7
by
Sulove Malla
number puzzle
encryption
+1
vote
Find next number in series 7, 16, 29, 46, ...
posted
Jul 6
by
Hanifa Mammadov
series
number puzzle
0
votes
Two digit number, when added together the answer is one half of the answer you get when digits are multiplied together?
posted
Jul 6
by
anonymous
number puzzle
logic
+1
vote
Complete the series 0, 2, 24, 252, 3120, ?
posted
Jul 1
by
Hanifa Mammadov
series
number puzzle
+1
vote
Complete the series 2, 18, 84, 260, 630, ?
posted
Jul 1
by
Hanifa Mammadov
series
number puzzle
+1
vote
Complete the series 1, 5, 13, 25, 41, ?
posted
Jul 1
by
Hanifa Mammadov
number puzzle
series
+1
vote
Complete the series 7, 12, 22, 37, 57, ?
posted
Jul 1
by
Hanifa Mammadov
series
number puzzle
0
votes
Find the number in place of question mark
posted
Jun 29
by
Hanifa Mammadov
number puzzle
mathematical
+1
vote
Guess a number 1-10, multiply it by 2, now add with 54 and divide by 2. Lastly subtract the number you guessed 1-10...
posted
Jun 29
by
Hanifa Mammadov
number puzzle
0
votes
Given a positive integer N and two of its divisors. Difference between N and these two divisors is 270 and 280...
posted
Jun 28
by
anonymous
number puzzle
mathematical
logic
0
votes
Asking sum of two numbers one person said 23 and other 210. They were both wrong, as they correctly done the wrong...
posted
Jun 28
by
anonymous
number puzzle
logic
0
votes
If 2+3+4=11, 3+4+5=15, 4+5+6=19, what is 7+8+9=?
posted
Jun 27
by
anonymous
number puzzle
logic
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