Which is faster, Heat or Cold ? Explain.

With the help clues provided in the image, can you find the 5 digit key?

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?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Which number should replace the question mark?

Find the missing number in the sequence below:

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

Next Number in the Series,

5, 16, 49, 104, ?

What can you hold in your right hand, but never in your left hand?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?