It is always ahead of me yet I can never see it. What is it?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

Solve the following series:
AZ, GT, MN, __, YB

When we see 2 but call 10?

Our product and our sum always give the same answer. Who are we?

Find the last number in the series below:

voN luJ yaM raM ---

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

who is silent in the parliament?

What runs around the whole yard without moving?