Vel Crow (Velcro).

Ice cube.

The marines were standing back to the edge of the ship so they were looking at each other. It does not matter where the ship is (of course it does not apply to the north and South Pole).

High (Hi) School.

This was just a catch question. One of the coins is really not a nickel because nickel is the other coin. So it is a fifty cent piece and a nickel -- it said ONE isn't a nickel, but the OTHER ONE IS!

Hot. Everyone can catch cold.

Neither, they both burn shorter.

Keep the first bulb switched on for a few minutes. It gets warm, right? So all you have to do then is ... switch it off, switch another one on, walk into the room with bulbs, touch them and tell which one was switched on as the first one (the warm one) and the others can be easily identified ...

You are under cover.

Because it changes ice into Mice.

He shot his reflection in the mirror.

If the tide is raising water, then it is raising the ship on water, too. So water will reach still the first rung.