Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Can you count the number of triangles inside a triangle?

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?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

By using 'because' continuously three times, can you make an English statement ?

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?

What part of the chicken has the most feathers?