I shave every day, but my beard stays the same. What am I?

Do You See It?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

What is wrong in the below Picture?

Can you find out the total number of triangles in the given figure?

What does this mean?

CCCCCCC

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?