Decode this picture on T-Shirt and tell what it says ?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

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

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

What has a bottom at the top?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

Find the value of "?" in the ball picture Riddle below: