You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. 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?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Which is the correct shadow of the bird?

How can you tell a raw egg from a hard-boiled egg?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

What is the difference between a jeweller and a jailer?