What's the next in the series?

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

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

Two old friends, Jack and Jill, meet after a long time, and discussing as:

Jack: Hey, how are you, man?

Bill: Not bad, got married and I have three kids now.

Jack: That's awesome. How old are they?

Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Jack: Cool..But I still don't know.

Bill: My eldest kid just started taking piano lessons.

Jack: Oh, now I get it.

How old are Bill's kids?

A woman named Maria was at the funeral of her mother. She met a nice young man that she had never seen before and after the service, they spent a bit of time together. Then she got busy and didn’t get his name or phone number before he left. She tried to find him, but no one knew who he was or how to contact him. A few weeks later, Maria’s older sister dies and the police suspect murder. Who killed the sister?

Find the missing number in the sequence below:

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

Our product and our sum always give the same answer. Who are we?

Can you count the number of quadrilaterals in the picture below?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

what does this below rebus represent identXQQQQQME