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

What English word has three consecutive double letters?

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?

There is something which is always coming but never arrives?

Can you count the number of lines in the below picture?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

Which tank will fill first?

Which English verb becomes past tense just by rearranging the letters?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?