Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

How can you take 2 from 5 and leave 4?

What goes through cities and fields, but never moves?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

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?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?