Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

Can you count the number of triangles in the given picture?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Suppose you are a girl candidate and sitting in an interview. Suddenly the interviewer asks you, 'What if one morning you wake up and find out that you are pregnant?

How will you reply to such a question?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

Find out the missing number in the picture attached:

Solve the equation in the image by looking at the pattern closely.

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?