If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Solve the puzzle by telling what does below picture means.

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?

Replace the question mark in the picture below.

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Can you find a number that lies one third of the distance between 1/3 and 2/3?

A blonde put eyeliner on her head. Why?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

What is black when you buy it, red when you use it, and gray when you throw it away?

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