There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

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

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

Can you replace the question mark with the correct number in the below table sequence?

Can you count the number of blocks in the picture below?

A landlord calls both of his sons and tells them that their horses will now decide who will transfer the inheritance. He tells them to race along the land till the end and the one whose horse will be slower will win and be the heir to all the property.

Both of them keep wandering for days but to no result. Then they ask a wise man regarding it. The man advises them on the matter after which they jump on the horses and race as fast as they can till the end. Why did they do it?

What did the wise man say?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?