If eleven plus two equals one, what does nine plus five equal?

How many triangles can you find in this given picture?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

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

Can you find out the missing number in the grid?

I have branches, but no fruit, trunk or leaves. What am I?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Can you find the hidden animal in the picture below?

I’m tall when I’m young, and I’m short when I’m old. What am I?