Logic Riddles

Question: Four cars come to a four way stop, all coming from a different direction. They can't decide who got there first, so they all go forward at the same time. They do not crash into each other, but all four cars go. How is this possible?

Question: What word doesn't belong in this group? That, hat, what, mat, cat, sat, pat, or chat?

Question: A claustrophobic person gets on a train. The train enters a tunnel just as it is leaving the station.

Where is the best place for him to sit?

Question: What is ideal without an eye?

Question: How can twins be born in different years?