If six children and two dogs were under an umbrella, how come none of them got wet?

What does this rebus riddle means ?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Do You See It?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Can you count the number of squares in the given picture?