How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Find the next number in the series.
1 10 24 43 67 ?

All Marigolds are flowers.
Few Flowers are used to make colors.
Therefore, some Marigold are used to make colors.

True Or False?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

What brings you down but never up?

Can you solve the below rebus?

If eleven plus two equals one, what does nine plus five equal?

What building has the most stories?