Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

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?

our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.

Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

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

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

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.