What has lots of eyes, but can’t see?

10+10 and 11+11 can give you the same answer.

Explain how?

Below, you can see some coding:
January = 1017
February = 628
March = 1335
April = 145
May = 1353
June = 1064
July = 1074
August = 186

Now deciphering the way it has been coded, can you find out how September will be coded?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Count the number of triangles in the picture below:

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

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

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?