what does the below rebus means?

Can you replace the question mark with the correct number?

How many times in a given day, minutes and hour clock comes in a straight line ?

Solve the rebus riddle in the picture below.

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

A blonde put eyeliner on her head. Why?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?