What's the next in the series?

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

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?

There was a strange boy who was born before his father. How can this be possible?

Can you solve this picture maths equation?

Can you count the number of triangles inside a triangle?

I drive at an average speed of 30 miles per hour to the railroad station each morning and catch my train. On a particular morning, there was a lot of traffic and at the halfway point, I had averaged only 15 miles per hour. How fast must I drive for the rest of the way to catch my train?

Decode this picture on T-Shirt and tell what it says ?

Replace the question mark with the number below given a simple math problem.

What English word has three consecutive double letters?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den