What is the next number in this matchsticks series riddle?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Can you find a five letter word that is left with only two letters if one is removed?

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?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

The cream is heavier than Milk. True or False?