If two's company, and three's a crowd, then whats four and five ?

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!

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

How is the moon similar to a dollar?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

What is the word or phrase?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?