Solve the following series:
AZ, GT, MN, __, YB

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

What's the next in the series?

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

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

Spot 5 differences in two Christmas tree below:

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

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

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?