Pictures:

Why can't you trust a staircase?

It is either up to something, or letting you down.

2450

When is a hot cup cold?

When there isn't something hot in it.

3261

What begins and ends with E but has only one letter?

Envelope.

950

What collection of animals gets its name from the sounds they make together?

A herd.

2041

Why did John think he had Type O blood, when he really had Type A?

His birth records had a Type O.

573

Which type of beer takes longer to make than other beers?

Lager

705

What is it called if someone rebels against the trees?

Tree-son.

1843

In the body, what is between tendon B and tendon D.

Tendency.

1082

What do you call a candy bar that sings rap music?

A candy rapper.

3048

Why did the man buy so much bottled water?

There was a liquidation sale.

1026

What has a head and a tail but no body?

A coin.

975

What did the cherry tree say to George Washington?

Don't ax me.

179