Recent puzzles under tag number puzzle

+1 vote

If 124 + 0 = 15; 246 + 0 = 32; 357 + 0 = 40 Then 468 + 0 = ?

posted 3 days ago by Parampreet Kaur

+1 vote

Find the sum of all the positive square-free integers whose divisors add up to 288.

posted 6 days ago by anonymous

0 votes

How many pairs of positive integers (m, n) that satisfy mn + 3m - 8n = 59?

posted Sep 30 by anonymous

+1 vote

If 6+1=7; 2+4=66; 1+9=84 then 6+4=?

posted Sep 26 by anonymous

0 votes

What number should replace the question mark? ? ; 15 ; 60 ; 180 ; 360

posted Sep 25 by Karan Joglekar

+1 vote

Replace each question mark with a mathematical sign. Plus, minus, multiply and divide can each be used once only.

posted Sep 10 by Ujjwal Mehra

+1 vote

can you solve a ~ b = d ?

posted Sep 5 by anonymous

+1 vote

Can you guess my "nifty operator" (#) ?

posted Sep 5 by anonymous

0 votes

Find the smallest positive integer that is exactly half the sum of its proper divisors?

posted Sep 3 by anonymous

0 votes

Decipher the logic and find the number for September = ?

posted Aug 29 by Parampreet Kaur

0 votes

Find the next term in the series - 1, 0, -2, -3, 8, 95, ?

posted Aug 27 by Pushpak Chauhan

0 votes

Which number will come in question mark?

posted Aug 17 by anonymous

0 votes

Divide 14 into the sum of many natural numbers, and find the maximum value of the product of these numbers?

posted Aug 14 by anonymous

0 votes

What is the next number in the sequence 0; 4; 36; 1,444; ?

posted Aug 9 by Amarvansh

0 votes

Can you solve this number puzzle?

posted Aug 2 by Kavyashree

+1 vote

What is the next in the series: 1, 16, 81, 256, 625 … ?

posted Jul 31 by Deepak Chitragar

0 votes

What is the nineth term of following series - 17, 19, 23, 29, 31, ..........

posted Jul 30 by Akriti

+1 vote

What is the next number in this series - 1284; 324; 84; 24; ?

posted Jul 25 by Pankaj Deshmukh

+1 vote

Of five consecutive multiples of three, the lowest is multiplied by two and four is added to give a number..............

posted Jul 19 by Rahul Vaidya

0 votes

Find the tenth term in this series - 0, 3, 3, 6, 9, 15, 24, 39, .........

posted Jul 15 by Upma

+1 vote

What number should appear next in this sequence - 1, 5, 12, 34, 92, 252, ?

posted Jul 8 by Pushpak Chauhan

0 votes

Logic with the missing number in the triangle?

posted Jul 6 by anonymous

+2 votes

Solve this: ABCDE ✕ 4 = EDCBA

posted Jul 5 by Afsana Akhter

+2 votes

Can you please find the logic of Marco's calculator bug?

posted Jul 4 by Afsana Akhter

0 votes

What is the next term in the following series - 67, 71, 73, 79, 83, 89, ?

posted Jul 4 by Dilbagh

0 votes

Find the missing number in the following grid

posted Jul 3 by anonymous

+1 vote

It's an easy one. Math.

posted Jul 2 by Comeback Tuesday

0 votes

Is (2^2019 − 1) a prime number?

posted Jun 24 by anonymous

+1 vote

If, 2 , 8 , 6 = 32; 3 , 7 , 8 = 35; 4 , 6 , 8 = 24; then, 5 , 6 , 7 = ?

posted Jun 19 by Vishal

+1 vote

Solve it in one minute. !!!

posted Jun 19 by Jay Yadav

0 votes

Can you solve this problem?

posted Jun 18 by Sahana

+1 vote

This Unique Visual Puzzle Has Stumped The Internet. Can You Solve It?

posted Jun 17 by Nway Nadar

+1 vote

What is the next term in the following series - 377, 610, 987, 1597, ?

posted Jun 13 by Upma

0 votes

Find the odd man out from the following series- 2, 3, 5, 7, 11, 13, 17, 19, 21, 23.

posted Jun 11 by Puneet Batra

+1 vote

What number will come in the place of question mark?

posted Jun 10 by Chahat Sharma

0 votes

What is the 4 digit number?

posted Jun 8 by Afsana Akhter

+1 vote

There is a combination lock with four inputs 0-9. Can you figure it out?

posted Jun 8 by Aarati Mahajan

0 votes

Can you please find the number of triangles in this picture?

posted Jun 5 by Afsana Akhter

+2 votes

Can you determine the professor's house number ?

posted Jun 5 by Nimish

0 votes

Will you crack the code?

posted Jun 3 by Afsana Akhter

0 votes

What is the next term in the following series - 43, 47, 53, 59, 61, 67, 71, ?

posted May 28 by Amarvansh

0 votes

What is the next number in this series - 14; 33; 71; 147; ?

posted May 23 by Rahul Vaidya

0 votes

The sum of two positive integers is 2310. Can their product be divisible by 2310?

posted May 17 by anonymous

+1 vote

A is a 5-digit number and that 8A/5, 9A/5, 21A/5 and 39A/5 are all 5-digit numbers with the same 5 digits as A. Find A?

posted May 16 by anonymous

0 votes

In the last column what are the four numbers: 2 5 9 7, 4 1 6 6, 6 5 3 5, _ _ _ _

posted May 15 by anonymous

0 votes

If you add these two prime numbers together, both less than 37, you will get me, and I am also less than 37?

posted May 14 by Danial Rotwaski

+1 vote

What mathematical symbol can be placed between 5 and 9, to get a number greater than 5 and smaller than 9?

posted May 14 by Arun Angadi

0 votes

a,b,c,d are distinct pairwise co-prime +ve integers with a^2 + b^2 = c^2 + d^2, lowest possible value of a + b + c + d?

posted Apr 26 by anonymous

0 votes

Find the greatest positive integer n for which n is divisible by all positive integers whose cube is not greater than n?

posted Apr 23 by anonymous

+1 vote

Which of the following bases has the most automorphic numbers for the first 100 positive integers?

posted Apr 22 by anonymous