How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

What Does this text mean:

important=important

Find the next number in the series below.

6 18 270 72090 ?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Prove that twice of ten is the same as twice of eleven.

There are a hundred statements.

First person says: At least one of the statements is false.

Second person says: At least two of the statements is false.

Third person says: At least three of the statements are false.

Fourth person says: At least four of the statements are false.

..

..

..

Hundredth person says: At least a hundred of the statements are false.

Analysing it, how many statements do you think are false and how many are true?

How do you go from 98 to 720 using just one letter?

What is more useful when it is broken?