What is at the end of a rainbow?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

what does the below rebus means?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91