What has one letter and starts with an E?

Can you replace the question mark with the correct number?

What number when divided in half becomes zero?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

How many words can a pen with half refill write?

What has hands, but can’t clap?

How many times do a clock's hands overlap in a day ?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

A woman named Maria was at the funeral of her mother. She met a nice young man that she had never seen before and after the service, they spent a bit of time together. Then she got busy and didn’t get his name or phone number before he left. She tried to find him, but no one knew who he was or how to contact him. A few weeks later, Maria’s older sister dies and the police suspect murder. Who killed the sister?