What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Solve the following series:
AZ, GT, MN, __, YB

Can you find the key in the picture below?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

If six children and two dogs were under an umbrella, how come none of them got wet?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?