When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Which Burger Is Different in below image?

What has one letter and starts with an E?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Give it food and it will live; give it water and it will die.

What jumps when it walks and sits when it stands?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.