Decode below rebus
D
N
A
T
S , D

What can go up a chimney down, but can’t go down a chimney up?

What has one eye, but can’t see?

What does this below rebus puzzle mean?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

With the help clues provided in the image, can you find the 5 digit key?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

John had a bag containing colourful marbles. The colours are red, green and blue. The total number of marbles he had in his bag was 60. There are 4 times as many red marbles as green marbles. 6 more blue marbles than green marbles. How many marbles of each colour did John have?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?