Which wheel of car does not rotate when you turn your car right?

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

I am white when I am dirty, and black when I am clean. What am I?

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

Can you find the number?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

what does the below rebus mean?

What is the word or phrase below?
R | E | A | D

Spot 5 differences in two Christmas tree below: