why number 8549176320 is one of a kind?

What goes up but never comes down?

Replace the question mark with the correct number in below Picture:

John's five friends Rachel, Jacob, Phoebe, Joey and Chandler live on the same road.

Rachel lives in the house: A, Jacob lives in the house: B, Phoebe lives in the house: C, Joey lives in the house:D, Chandler lives in the house: E

Mathematically
B*C*D = 1260
B + C + D = 2E
2A = E

The road numbers run from 2 to 222.

Can you tell me the house number of each of John's friends?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

What does below chemistry rebus means?

What is the next number in the series?

15 29 56 108 208 ?

What is the difference between a jeweller and a jailer?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?