Sample Challenge Math Problems For 4th Graders

Problem 1:

A man is going to give a house to one of his sons. In order for a son to obtain the house, the son has to find the only two things that can fill up a room of any size. The first son brought two huge blocks of stone, but they did not fill up the gigantic room. The second son thought for a long time, and when he showed his father and brother, he won. What did he bring?

Solution:

The answer is that the second son brought a candle and a match!

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Problem 2:

What is the next letter after A E F H I K L M?

Solution:

Since the letters all have no curves, so the next letter after M should be N.

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Problem 3:

When does 11 + 2 equal 1?

Solution:

On a clock. 11:00 + 2 hours is 1:00!