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?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

These types of puzzles are known as charades. What you have to do is to find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be the 'office'.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Prove that twice of ten is the same as twice of eleven.

You walk into a room and see a bed. On the bed, there are two dogs, five cats, a giraffe, six cows, and a goose. There are also three doves flying above the bed. How many legs are on the floor?

What kind of tree can you carry in your hand?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

The dirtier I get, the whiter I look. Who am I?