What do you answer even though it never asks you questions?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

What does this mean?

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Solve the counting riddle by identifying the number of triangles in the given picture.

Can you spot the hidden girl in the picture below?

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?

What number do you get when you multiply all of the numbers on a telephone's number pad?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

Can you find out the number of the parking space in which the car is parked?