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

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Which Burger Is Different in below image?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Can you solve this picture maths equation?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

What has many keys but can’t open a single lock?