How many times can you subtract the number 5 from the number 25?
Once
After you subtract 5 the first time, you are left with 20, so you are no longer subtracting from 25.
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Easy. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
More math riddles
At a round table, 8 people are seated. Every person shakes hands with everyone except the person directly opposite them and the two people sitting immediately beside them. How many handshakes take place in total?
Half of the 12 waves on the table are taken away. How many waves are left on the table?
In a group of 30 students, 18 play soccer and 15 play basketball. If 5 students play neither sport, how many students play BOTH soccer and basketball?
A professor remarks: 'I am an adult under 70 years of age. Exactly three years ago, my age was divisible by 8. Exactly three years from now, my age will be divisible by 7.' How old is the professor?
Mia has 3 birds. Omar has twice as many. How many birds do they have together?
When written out as an English word, my letters appear in strict alphabetical order. No number greater than me possesses this attribute. What number am I?

