here's some very nice lateral thinking test..some company even use it in their job interviewing.
1.
There is a man who lives on the top floor of a very tall building.Everyday he gets the elevator down to the ground floor to leave the building to go to work.
Upon returning from work though, he can only travel half way up in the lift and has to walk the rest of the way
unless it's raining! Why?
有一男租客住在一栋最高那层的大厦里。每一天他上班都会用电梯下到最低层。放班回来后，但他只能用电梯上到一半，其余的他必须用走的才能到家，除非是下雨天！为什么呢？
(This is probably the best known and most celebrated
of all lateral thinking puzzles. It is a true classic. Although there are many possible solutions which fit the initial conditions, only the canonical answeris truly satisfying. )
(这大概是在横向思维难题里最众所周知的。虽然根据最初的情况，可能有很多答案，但，只有认可(标准的)答案才真正的满意。)
2。
A man and his son are in a car accident. The father dies on the scene, but the child is rushed to the hospital. When he arrives the surgeon says, "I can't operate on this boy, he is my son! " How can this be?
男的和他的儿子发生车祸。父亲当场丧命，而，儿子就赶紧送到医院。当他到达时，医生说：“我无法和这男孩施手术，他是我的儿子”为什么会这样的呢？
3。
A man is wearing black. Black shoes, socks,trousers,lumber, gloves and balaclava. He is walking down a black street with all the street lamps off. A black car is coming towards him with its light off but somehow manages to stop in time.
How did the driver see the man?
男人身上穿着全黑。黑色的鞋子，袜子，衣裳，夹克，手套，巴拉克拉瓦帽 (紧紧罩住头部和颈部而只露出脸部的帽子)。他在一条很黑没有路灯的巷子走着。有一台黑色没有开灯的车子向男子的方向驶着，但车子来得及停下来。
司机为什么能看到那男子呢？
“Endings can be beginnings, beginning in the light of hope the tower of solitude is with me.
I wish someday I can ask and have your voice again who once, answered.”
