In the attached picture you see green lentils which I want to prepare in order to make a Dal. They are obviously dried although it is not mentioned directly on the package.   My question is: Do I need to treat them like dried chickpeas? Dried chickpeas must be unpacked and then stay submerged for around twelve hours to be edible and cookable. Do i need to do the same with the lentils? One lentil has far less mass than a chickpea so I had doubts.  EDIT: I am aware of this possible duplicate but the submitter of the question has not clarified what types of lentils he wants to cook:
Everything I have read says that you do not need to soak lentils like you would beans.  Unfortunately the last several times I have cooked lentils they have seemed a little chalky.    Should I be soaking my lentils before I cook them?
Why does Axii sign not work? How to show that $\int_{0}^{\pi}{\sin^5 x\over 1+\cos^3 x}\mathrm dx=\ln 3?$ Given the integral $(1)$     $$\int_{0}^{\pi}{\sin^5 x\over 1+\cos^3 x}\mathrm dx=\ln 3\tag1$$   This integral seems to be quite tough, I can't even know where to start. I have try substitution $u=1+\cos^3 x$ and $u=\cos^3 x$, can seem to remove the x variables.  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