What is common among 11, 69, and 88?

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

O T T F F S S ?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

There is something which is always coming but never arrives?

Solve the equation in the image by looking at the pattern closely.

Can you write down eight eights so that they add up to one thousand?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

The centre of the third figure is empty. What digit should fit inside?

What work can one never finish?