Logic Riddles With Answers

What gets bigger after dinner but smaller the next day?

What word starts with water but does not get wet?

A station clock, a chess clock and a stopwatch all measure me, yet none can keep me once I have gone. What am I?

At midnight I may be tomorrow; by breakfast I have a new name. You can schedule me, but you can never arrive while I am still ahead. What am I?

The same photograph can make a crowd look huge or tiny, depending on which edges are cut away. What silent trick changed the truth?

I arrive as a locked question with all the keys hidden in the clues. Solving me means arranging what is already there. What am I?

Feed me dry wood and air and I grow; starve me of oxygen or give me water and I die. What am I?

In wallpaper I am seen, in a drumbeat I am heard, and in a password I am hunted. Once noticed, I am hard to unsee. What am I?

Lawyers build me, logicians test me, and one weak premise can make me collapse. What am I?

I sit under a conclusion so quietly that people may argue above me for hours. Challenge me, and the whole discussion can change. What am I?

A fence may mark me, a deadline may become me, and a joke may reveal me only after it has gone too far. What am I?

A referee gives me, a court records me, and a crowd may pass me before the evidence is complete. What am I?

It leaves no bruise, yet one remembered action can make it grow heavier for years. What is it?

Two identical glasses hide me. Fill one a centimetre higher than the other, and I appear. What am I?

The moment I am told, I still exist, but I no longer belong to one person. Add more keepers and I become harder to keep. What am I?

I tell time by copying the sun's refusal to stand still; indoors I am useless, and at noon I almost disappear. What am I?

Evidence can open me, fear can close me, and one conversation can change me without touching me. What am I?

I am not written on a CV; comfort may hide me, pressure reveals me, and repeated choices build me slowly. What am I?

A detective may reach me without taking a step, and one false clue can send me in the wrong direction. What am I?

A coin is a circle on the table, an oval from the side, and almost a line at eye level. What changed?

Project managers like me broken into tasks; ignored, I grow costlier; examined, I reveal the next step. What am I?

A lawyer builds me with facts, doubt weakens me, and proof can make me strong again. What am I?

I begin with two premises and end with a conclusion; if my middle term fails, so do I. What am I?

Scientists trust me only after trying to prove me wrong; assume me without testing and I am just a guess. What am I?