What has many keys but can’t open a single lock?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

I always drive my customer away.

Who am I?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

What does this Rebus Picture mean?

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

I am an odd number. Take away a letter and I become even. What number am I?

What is the end of everything?