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

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

How many times can you subtract the number two from the number fifty?

In the four images below, can you find the odd one out?

Can you find the key in the picture below?

How many triangles are there on the puzzle below?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

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

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?