You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

I have eight fingers and two thumbs but I do not live. What Am I?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

How can one talk without saying a single word?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

When it is alive we sing, when it is dead we clap our hands. What is it?