How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

Can you find any error in the following sentence?

A taxi was standing outside a fort at night. A man came out of the fort, opened the gate and hit the taxi driver killing him instantly. He took all the money out of the meter and started running till he was caught by a local sheriff.

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Which of the eight images will fill the missing image in the puzzle below?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?