Can you find out the total number of triangles in the given figure?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

Do You See It?

Can you count the number of triangles inside a triangle?

Which part of London exists in France as well ?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

What does this say?

XLR8

What can you hold in your right hand, but never in your left hand?