Can you count the number of triangles in the given figure?

Find the next number in the series below

21 32 54 87 131 ?

What Does this text mean:

important=important

Which is heavier: a ton of bricks or a ton of feathers?

How can you make number one disappear by adding something to it?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

What demands an answer, but asks no questions