How many words can a pen with half refill write?

In the image below, can you find the value of an angle(y)

What begins with T, ends with T, and has T in it?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

Rearrange the letters in "new door" to make one word.

What has to be broken before you can use it?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?