How many triangles are there on the puzzle below?

A man is sitting in a bar when a rich man sits next to him. He turns to the rich man and says, “Did you know I know almost every song that has ever existed?”

The rich man laughs. The man then says, “I bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it. The rich man laughs again and says, “OK, how about my daughter’s name, Jamie Armstrong-Miller?” Minutes later, the man collects his cash and the rich man goes home cashless. What song did the man sing?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

How many times can you subtract the number 5 from 25?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

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

f you were running a race, and you passed the person in 2nd place, what place would you be in now?