What is wrong in the below Picture?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

You can see three almost identical images below. Can you spot the odd one out from them?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

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?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?