Which word does the below Plexor means ?

Find the missing number in the image below.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What begins with T, ends with T, and has T in it?

No matter how little or how much you use me, you change me every month. What am I?

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

I am sure no one can have two things for dinner. what are they?

If your uncle’s sister is not your aunt, what relation is she to you?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?