Replace the question mark with the correct number.

What Time Should the last watch show in the below figure?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

In a family supper, a grandfather, a grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one daughter-in-law, and one mother-in-law need to sit at a table.

There are only seven chairs available at the place. How many more chairs do they have to borrow so that everyone can sit down together for the suppers if everybody requires a separate chair?

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Complete the table series riddle by finding the number that can replace "??".

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?