Solution:

Liquid state

Solution:

The two babies are two of a set of triplets(or even more)

Solution:

No U Turn

Solution:

If you ask the guard who always tells the truth, he would tell you the other guard would point you to the door of death. If you ask the guard who always lies, he would tell you the opposite door of the truth-telling guard and point you to the door of death. In either case, both guards will point to the door of death so you should choose the other one.

Solution:

Suicide

Solution:

Six.

There are only five colors, so six socks guarantee that two will be the same color.

Solution:

0
Their is a zero in your phone.

Solution:

"mistake" is misspelled as "mitsake"

Solution:

There is no smoke with an electric train.

Solution:

Name of a Person