A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

What does below Rebus say?

XLR8

I’m tall when I’m young, and I’m short when I’m old. What am I?

I cannot talk, but I always reply when spoken to. What am I?

Sherlock breaks into a crime scene. The victim is the owner who is slumped dead on a chair and have a bullet hole in his head. A gun lies on the floor and a cassette recorder is found on the table. On pressing the play button, Sherlock hears the message 'I have committed sins in my life and now I offer my soul to the great Lord' and followed a gunshot Sherlock smiles and informed the police that's its a murder.

Why did he think so?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Can you solve the maths in the below-given picture equation?