If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

What occurs twice in a week, once in a year but never in a day?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

A family is trapped in a jungle. There is a bridge which can lead them to safety. But at one time, the bridge can only allow two people to pass through. Also, all of them are afraid of the dark and thus, they can't go alone.

Father takes 1 minute to cross, the mother takes 2 minutes, the son takes 4 and the daughter takes 5 minutes. While crossing the time taken will be according to the slower one. How can they all reach the other side in the minimum possible time?

What does this Rebus Picture means ?

On a bright sunny day, two fathers took their son fishing in the lake. Each man and son were able to catch one fish. When they returned to their camp, there were only three fishes in the basket. What happened?

PS: None of the fish were eaten, lost, or thrown back.

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?