Solution:

Arc + tick + circle.
= Artic Circle

Solution:

The mules is moving in circular path and hence outside legs travels more distance than inner legs.

Solution:

100

Series of number that do not contain albhabet 'T'

Solution:

It can be solve as shown below.

Solution:

Align the toothpicks to form TEN. Use one toothpick for each of the lines.

Solution:

Q = 1
U = 9
I = 6
C = 8
K = 3.

Explanation:
Replace values in( Q + U + I + C + K)^3 = QUICK
(1+9+8+6+3)^3 = 19863
27^3 = 19863
19863 = 19863

Solution:

He simply suggested that one of the brothers will be allowed to divide the land but he must take into consideration that it will be the other one who will have a choice of selecting his land between the two halves first.

Thus both will be happy in such manner.

Solution:

The attached picture shows you how you can do it. If you were able to deduce any other way, feel free to comment.

Solution:

She is near the trunk of the tree as shown below.

Solution:

2 degree below zero

Solution:

Michelangelo juggles the diamonds across while crossing the bridge.