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

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

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

A sundial has the fewest moving parts of any timepiece. Which has the most?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

Can you Find and name the hidden bird in the picture below ?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.