#### I am small, I have wings, I carry a weapon. I target people and once I do, they’re usually glad I did. Who am I?

**Answer: **I am Cupid

**Solution: **

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#### How do you calculate 1+2+3+4+5+6+7+8+9+10 quickly?

**Answer: **55

**Solution: **

**Answer : 55**

The series “1+2+3+4+5+6+7+8+9+10” can be considered as the sum of the first 10 Natural numbers.

The generalized formula to find the sum of first N natural numbers is

(N * (N + 1) ) /2

For the series given, the value of N is 10

So substituting value of N in the generalized formula

( 10 * (10 + 1) ) / 2

= (10 * 11 ) / 2

= 110/2

Correct answer = 55

**Answer : 55**

The series “1+2+3+4+5+6+7+8+9+10” can be considered as the sum of the first 10 Natural numbers.

The generalized formula to find the sum of first N natural numbers is

(N * (N + 1) ) /2

For the series given, the value of N is 10

So substituting value of N in the generalized formula

( 10 * (10 + 1) ) / 2

= (10 * 11 ) / 2

= 110/2

Correct answer = 55

#### What single-digit number should go in the box with the question? 6 5 9 2 7 1 4 3 5 ? 8 0 2 8 1

**Answer: ** The missing number is 4. Simply add the first and second rows together to get the third row value.
65, 927
+
14, 354
80, 281

**Solution: **

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