Can you find the thief by just looking at the picture below?

You can see it everyday, But cannot touch it at will. What is it?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

What is full of holes but still holds water?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

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?