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

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Count the number of triangles in the below picture?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

A person was killed at a house party. When the police arrive, there are six people present in the house who are the friends of the victim. The name of the friends is Rohit, Aman, Nick, Gagan, and Randy.

Near the dead body, they find a few numbers written with blood by the victim on the floor. The numbers are 8, 5, 4, and 11.

The police arrests one of the friends for the murder. Whom did they arrest and why?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?